Deism has inspired the greatest minds of the Enlightenment, shaped the course of history, and continues to give countless people a name for beliefs they already hold but never had a term for—until now.
If you are one of the approximately 29% of US adults who are religiously unaffiliated, or who have perhaps left an organized religion, Deism may be for you.
Its roots run deep through European and American history, including the American Revolution and the founding of the United States.
Whether you are here to study Deism's philosophical and historical legacy, or to explore whether it reflects your own beliefs, this site is one of the most comprehensive resources available.
Deism is the belief in the existence of one God on the evidence of reason and nature only, with rejection of supernatural revelation.
The word Deism is derived from the Latin deus, meaning "God."
God is revealed through nature and reason, not supernatural revelation or scripture.
Human reason and observation are the only reliable means of understanding God and morality.
Miracles, prophecy, and divine intervention contradict natural law and reason.
Moral principles are embedded in nature and accessible through reason, independent of any scripture or creed. Virtue is chosen, not commanded.
The philosophy and belief system are two dimensions that overlap considerably. A useful distinction is that Deism as a philosophy describes how one approaches questions about God, nature, and knowledge, while Deism as a belief system describes the conclusions characteristic of Deism when that approach is combined with belief in a Creator.
"I believe in one God, and no more; and I hope for happiness beyond this life. I believe in the equality of man; and I believe that religious duties consist in doing justice, loving mercy, and endeavoring to make our fellow-creatures happy."
— Thomas Paine, The Age of Reason, Part I (1794)
"The only religion that has not been invented, and that has in it every evidence of divine originality, is pure and simple Deism. It must have been the first, and will probably be the last, that man believes."
— Thomas Paine, The Age of Reason Part II (1795)
Deism is often confused with atheism, agnosticism, and spiritual but not religious.
| Belief / Practice | Deism | Atheism | Agnosticism | Organized Religion | Spiritual not Religious |
|---|---|---|---|---|---|
| Believes in a Creator / God | |||||
| Based on reason and nature | |||||
| Accepts scripture as divine | |||||
| Believes in miracles | |||||
| Requires clergy or institution | |||||
| God intervenes in human affairs | |||||
| Open question on afterlife | |||||
| Emphasizes moral duty | |||||
| Prayer or worship required | |||||
| Has a defined belief framework |
= varies by individual or tradition
Explore Deism FAQs — frequently asked questions about Deism, its beliefs, history, and practice.
According to the Pew Research Center, approximately 29% of U.S. adults are religiously unaffiliated — a group often called the "nones." Based on U.S. Census Bureau data, that translates to roughly 76 million adults out of the 262 million adults in a country of 340 million people. The "nones" (29%) are broken down into these three subcategories:
Atheist
17%
Disbelief in any God or Creator
Agnostic
20%
Uncertain about the existence of a Creator
"Nothing in Particular"
63%
No specific belief system — open-minded
Of those three subcategories, the agnostic and "nothing in particular" groups together represent 83% of all "nones" — which equates to approximately 63 million people, or 24% of the total U.S. adult population. Amazingly, that places this group second in size only to Protestant membership in the United States.
70%
of "nones"
Very interestingly, according to a 2023 Pew Research Center survey, about 70% of religiously unaffiliated Americans say they believe in some God or higher power — even without identifying with a specific religion. Many describe themselves as "spiritual but not religious" (SBNR). They believe in a Creator but do not follow organized religion.
These are people who hold spiritual beliefs, sense the existence of a Creator, yet find no comfortable home in organized religion. Many left a faith tradition. Many were never part of one. What they share is openness — to reason, to nature, to scientific discovery, and to a God that need not be defined by dogma, clergy, or scripture.
Deism may be the name for what they already believe. Many of these Americans are Deists unknowingly — they hold Deist beliefs without knowing the word. It is a resurgence whose time has come — made possible by societal changes in how organized religion is viewed, and by a growing thirst for a modern belief system that accepts new scientific discoveries, discards fear and guilt, and embraces reason and nature.
Ten questions. Two minutes. Find out whether Deism may already describe what you believe.
For each statement below, choose Yes, Somewhat, or No based on how closely it reflects your own beliefs. There are no right or wrong answers — only honest ones. Your responses are not recorded or shared.
Anthropologists estimate that humans have worshipped at least 18,000 different gods, goddesses, animals, and objects since the beginning of our species. Because belief in one Creator is a principal tenet of Deism, this section explores the evidence.
"The designs presuppose a designer."
— William Paley, Natural Theology (1802)
This is one of the most powerful yet very simple statements that support the idea of a Supreme Architect.
William Paley captured it simply: "The designs presuppose a designer." But what exactly does that mean? "The designs" refers to everything in nature and the universe that appears ordered, functional, or purposeful. A "designer" is someone or something that orchestrated all of the unbelievably complex life found in nature and the magnificence of the universe — designs that provide teeth to secure nourishment, warmth in the form of fur, or physical protection in the form of biological camouflage or a spiny skin, and the millions of other examples we see in nature.
Design implies a designer
When we encounter anything complex and purposeful, we instinctively infer that an intelligent mind created it. This is the core of the teleological argument, from the Greek word telos, meaning "purpose." Did the complexity and beauty in nature and the universe come about by sheer chance, or is there a mind at work?
First cause, the Big Bang, and fine-tuning
In his book Return of the God Hypothesis (2021), American philosopher of science Stephen C. Meyer identifies three scientific discoveries that support Intelligent Design — the first two involve cosmology. The cosmological argument begins with first cause: everything that exists has a cause, but there cannot be an infinite regress of causes. Aristotle called the origin point the "Unmoved Mover." Thomas Aquinas formalized it in three ways — a first unmoved mover, a first uncaused cause, and a necessary being that exists by its own nature — and these arguments align with the Big Bang theory. Discoveries in astronomy and physics confirm the universe had a definite beginning. Three measurable phenomena support this: redshift (galaxies moving away from us, showing the universe is expanding); Cosmic Microwave Background (CMB) radiation (the faint heat remnant of the Big Bang, confirmed by NASA's COBE satellite — whose director George Smoot said, "If you're religious, it's like seeing God"); and the accelerating expansion of the universe, driven by a mysterious force called dark energy. All of this points to an origin from an infinitely small singularity — giving rise to space, time, matter, and energy. "The idea of a first cause suggests that something, potentially a designer, initiated the Big Bang." The second cosmological discovery is the fine-tuning of the universe. Physical constants are so precisely calibrated that the slightest variation would make life impossible: the Gravitational Constant governs star formation; the Electromagnetic Force governs atomic chemistry; the Strong Nuclear Force holds atomic nuclei together; and the Cosmological Constant governs the rate of the universe's expansion. Fred Hoyle observed, "A common-sense interpretation of the data suggests that a super intellect has monkeyed with physics." Stephen Hawking wrote, "The values of these numbers seem to have been very finely adjusted to make possible the development of life." Physicist P.C.W. Davies put it plainly: "The entire universe is balanced on a knife-edge."
The third cited source of evidence for Intelligent Design
As a basis for all scientific reasoning, whenever information of any kind is present, it is inferred there is intelligence behind that information. Computer software does not appear out of nowhere — a programmer makes it. In 1953, Watson and Crick's discovery of the DNA double helix revealed that life is built on molecular biology — a language of staggering complexity. DNA is, in effect, a highly complex coded language used to build protein structures from which all forms of life originate. The argument is compelling: the same logic that tells us code requires a coder tells us that the digital language embedded in every living cell required an intelligence to write it. This is the first belief of Deism — the existence of an intelligent Creator.
"DNA is like a computer program but far, far more advanced than any software ever created."
— Bill Gates, Microsoft Founder
"The machine code of the genes is uncannily computer-like. Apart from differences in jargon, the pages of a molecular biology journal might be interchanged with those of a computer engineering journal."
— Professor Richard Dawkins
Against the odds of random chance
British astronomer and mathematician Fred Hoyle (1915–2001) famously argued that the spontaneous formation of life by chance alone was as unlikely as "a tornado sweeping through a junkyard and assembling a fully functional Boeing 747." Although the analogy was primarily concerned with the origin of life rather than the process of biological evolution, it raises a broader philosophical question about whether the order, information, and remarkable suitability of the universe for producing life can be viewed as evidence that the underlying system may ultimately reflect intelligence. From a Deistic perspective, this possibility is consistent with the belief that a Creator established the universe and its natural laws in a way that permits the development of life and complexity through natural processes.
A sudden burst of complex life
Approximately 540 million years ago, Earth experienced a remarkable diversification of animal life known as the Cambrian Explosion. During this period, many of the major groups of animals represented in modern ecosystems emerged or diversified rapidly, accompanied by the development of complex body structures such as shells, exoskeletons, and new forms of movement and feeding. Although significant animal life existed before the Cambrian and evolutionary scientists continue to investigate the causes and precise timing of this diversification, the Cambrian Explosion remains an important chapter in the history of life and raises profound questions about the emergence of biological complexity. From a Deistic perspective, these questions do not require supernatural intervention or a rejection of evolution. Rather, the extraordinary capacity of nature to generate complexity and diversity can be viewed as part of the unfolding of a universe governed by consistent natural laws established by an intelligent Creator.
The most complex creation in the known universe
The human brain is arguably the most complex known biological system in the universe. A single cubic centimeter of brain tissue contains approximately one hundred million neurons, each forming thousands of connections (synapses) with other neurons—resulting in trillions of connections in a physically very small area. To put this in perspective, the total number of connections in the entire human brain is estimated to exceed 100 trillion, while the entire Milky Way galaxy contains an estimated 100 to 400 billion stars. There are therefore more connections in a cubic centimeter of human brain tissue than there are stars in the Milky Way. Evolutionary science provides an account of how increasingly complex biological systems can develop through natural processes. For the Deist, however, this extraordinary complexity raises a deeper philosophical question: Why does a universe governed by orderly natural laws exist at all, and why are those laws capable of producing life, consciousness, and a mind capable of contemplating the universe itself? Deism answers that question by proposing that the universe ultimately originates in a rational Creator who established its laws and permitted nature to unfold according to them.
When the extraordinary precision of the physical parameters of the universe and the remarkable complexity of the DNA molecule are considered together, they raise profound questions about whether the order and complexity we observe can be adequately explained by chance and natural processes alone. For the Deist, these features of nature provide reasonable grounds for believing in an intelligent Creator—the foundational belief of Deism.
"I have enough information to comfortably believe in an intelligent designer, a God. This is the first belief of Deism."
— SD Hagen
Though its heyday was the 18th century, Deism has experienced a quiet revival in the age of science, skepticism, and religious pluralism.
In recent decades, Deism has found new adherents among those disillusioned with organized religion but unwilling to embrace atheism. The internet has enabled Deist communities to form and share ideas globally.
Modern Deists embrace scientific discovery as a welcome means to better understand the creation. Evolutionary biology, cosmology, and quantum physics provide evidence of an ordered, rational universe.
Deism shares common ground with secular humanism: emphasis on reason, ethics grounded in human flourishing, and rejection of supernatural revelation. The difference? Deists affirm a Creator; humanists do not.
Groups like the World Union of Deists and online communities provide resources, discussion forums, and support for modern Deists seeking intellectual fellowship without religious dogma.
In an age of scientific discovery, religious diversity, and increasing skepticism toward organized religion, many people are searching for a worldview that embraces both reason and spirituality. Deism offers that balance. It encourages the use of logic, evidence, and personal reflection while affirming that the order and beauty of the universe point to a Creator.
Without requiring miracles, dogma, or institutional authority, Deism appeals to those who seek a belief system grounded in nature, reason, personal responsibility, and intellectual freedom.
It is fascinating to know that Deist thought, traceable back to ancient Greek philosophy, formed during the Enlightenment and practiced by very prominent figures in American history, is woven into the historical documents that the United States and its form of government were founded upon. With a rich history spanning more than two centuries over two continents, why didn't Deism become a mainstream belief system?
Below are eight topics that influenced Deism's limited prevalence beyond the early 19th century, when Evangelical Christianity surged during the Second Great Awakening and Romanticism gained prominence. Deism's legacy endured in the form of religious tolerance, secular governance, and the emphasis on reason in religious thought. It is not difficult to understand why these factors inhibited the growth of Deism just two and a half centuries ago.
The Role of Organized Religion. Organized religious institutions, particularly Christianity, were deeply entrenched in social, political, and cultural life. The church played a central role in governance, education, and community structure, making it difficult for Deism to challenge established systems. People found comfort in the structure and community that organized religions provided.
The Appeal of Miracles and Divine Intervention. The Deist view of a non-intervening God conflicted with the popular belief in divine intervention, miracles, and the idea of a personal relationship with God. Deism was considered less emotionally fulfilling since a Deist God did not engage in human affairs, such as answering prayer.
Philosophical and Theological Opposition. Deism was often criticized by both religious authorities and secular thinkers. Religious leaders viewed it as heretical because it denied key aspects of Christianity, such as the authority of scripture, the divinity of Jesus Christ, and the possibility of miracles. Secular thinkers, including some Enlightenment philosophers, found Deism's emphasis on a distant creator insufficient in addressing questions about morality and the meaning of life. They believed that atheism or a more philosophical system was a better alternative.
The Evolution of Secular and Atheistic Thought. As the Enlightenment period matured, secularism and atheism began to gain more attention, particularly in the works of philosophers like Friedrich Nietzsche, Karl Marx, and later Sigmund Freud. These thinkers offered alternative perspectives on human existence and the nature of God, often rejecting Deism's idea of a creator altogether.
The Spread of Scientific and Technological Advances. While Deism emphasized understanding God through reason and the natural world, modern science and technology increasingly provided more materialistic explanations for the universe's workings. As scientific knowledge advanced, the need for a deity who set the universe in motion but did not intervene became less compelling to many people, particularly those in scientific circles.
Political and Social Shifts. Deism was sometimes associated with anti-religious sentiment and political radicalism. The cult of reason in France during the French Revolution, for example, led to an antagonistic relationship between Deism and established religious institutions. Political association may have caused people to distance themselves from Deism in favor of more traditional or personal religious beliefs. The primary concern during and after the American Revolution was nation-building, governance, and securing individual liberties. While Deistic ideas shaped political thought — especially regarding religious freedom — there was not a widespread movement to establish Deism as a structured belief system.
Lack of a Strong Organizational Structure. Unlike Christianity, with centuries of institutional development, Deism did not have a cohesive, organized structure to promote and sustain its beliefs. Deism was more of a philosophical and individualistic movement, lacking the community, rituals, and traditions that made religious institutions enduring. This made it more difficult for Deism to maintain its widespread appeal in the long term.
The Rise of Religious Revivalism. During the late 18th and early 19th centuries, religious movements like the Great Awakening in America and the Evangelical Revival in Britain saw a resurgence in Christian religious fervor. These movements emphasized personal faith, emotional experience, and divine intervention, which contrasted sharply with the rational, non-interventionist God described in Deism. The emotional and personal connection to God was more appealing to a broad audience than the distant deity of Deism.
Applicability Today: Three of these factors stand out as the largest obstacles to the survival of Deism beyond the 19th century. A review of these three, along with their present-day relevance, illustrates how much has changed.
The first and most obvious is organized religion. There is no doubt that the traditional Abrahamic religions, as entrenched as they were in society, left little chance for Deism to take root. When Thomas Paine wrote Common Sense, it was published anonymously — the cover states "Written by an Englishman" as a way for Paine to avoid persecution. Publishing thoughts that went against the monarchy or the church was treacherous in those days. In modern society, religious freedom is guaranteed, and open debate about religion and spirituality in the 21st century is as prevalent as ever in the public sphere.
The second most critical obstacle was the lack of an organizational structure and social opportunity. Many people enjoy the structure that organized religion offers, and the fellowship as a natural human trait. Church fellowship was a significant benefit and primary source of socialization that people cherished in early America. A natural question arises when considering that the "nones," 29 percent of the U.S. adult population, do not have religious fellowship. If group and community gatherings are important to the human psyche, the modern world offers an answer: the number of opportunities for social interaction available today could not have been imagined just two centuries ago. In-person or online clubs, hobbies, exercise classes, sports and entertainment venues, golf courses, bowling alleys, charity events, and even dating websites, as a few examples, are bridging the social opportunity gap. Surveys indicate that many followers of organized religion do not attend services regularly, and clergy have acknowledged that their services compete with the activities of modern life.
The third most influential factor was the impersonal nature of Deistic beliefs — namely, the concept of a non-intervening God. There is no single definition of God within Deism. In Deistic literature one encounters terms such as the supreme architect, the watchmaker, the deity, and providence. Deists believe in a creator visible in the beauty of nature and the universe, but this force remains unknown and unknowable. As rational thinkers, Deists hold differing views on God's presence in the universe. Deism does not hold that God interferes with humanity, nor is there a unified position that the creator is completely absent from the universe. The Deist concept of God is not that of a personal deity answering prayers or conducting miracles — and it is this impersonal nature that many people find difficult to relate to, yet Deists view it as simply a reflection of the observable state of the world. A connection to a personal God that intervenes in daily life is apparently not important to 29% of the U.S. population, and an agnostic or "nothing in particular" person is unlikely to be disappointed to learn that Deism does not require reading scripture, attending church services, or praying to a personal God.
The three factors identified above, along with the five other factors previously outlined, are key topics that kept Deism from becoming a mainstream belief system beyond the 19th century. The world is far more complicated than life in the 17th and 18th centuries, and interestingly, Deism's ideas and principles remain very rational, arguably even more so now when you take into consideration the historical factors that understandably muted its progress but are far less relevant today.
Deism is non-hierarchical and non-institutional — there is no indoctrination, no membership, no formal organization, and no entrance exam. Living as a Deist is not much different than living like anyone else who values a belief system, strives to lead a virtuous life, and wants to help others in need. That said, below are some guiding principles that deists can generally follow.
The intellectual lineage of Deism stretches from ancient philosophy through the Renaissance to the Enlightenment — each era contributing to its development.
Proto-Deist ideas emerged in the works of Greek philosophers who questioned mythological explanations of nature. Aristotle's "Unmoved Mover" and the Stoic conception of a rational, ordered universe laid philosophical groundwork.
The revival of classical learning and emphasis on human reason created fertile ground. Thinkers like Marsilio Ficino and Pico della Mirandola championed natural theology — the study of God through nature rather than revelation.
Discoveries by Copernicus, Galileo, and Newton revealed a mechanistic, law-governed universe. The "clockwork universe" concept — God as a divine watchmaker who crafted the cosmos and stepped back — became the intellectual cornerstone of Deism.
Deism crystallized as a distinct worldview. English Deists like Lord Herbert of Cherbury and John Toland, French philosophers like Voltaire and Rousseau, and American founders like Jefferson, Franklin, and Thomas Paine championed reason over dogma.
Key moments in the development and spread of Deist thought — from ancient Greece through the Enlightenment and across Europe and America.
Ancient Greece
Although Deism emerged during the Enlightenment of the 17th and 18th centuries, many of its core ideas originated more than two thousand years earlier in the philosophical schools of ancient Greece. Greek philosophers began replacing myth and superstition with reason, observation, and philosophical inquiry, asking whether the universe operates according to natural laws that the human mind can understand. This revolutionary approach laid the intellectual foundation upon which Deism would later be built.
Socrates taught that truth should be pursued through questioning and reason rather than accepted blindly through tradition or authority. Plato argued that the universe reflects an underlying rational order that can be understood through the human intellect. Aristotle expanded these ideas by studying the natural world systematically and proposing the concept of a First Cause — an eternal source behind the existence and order of the universe. Together, these philosophers established principles that would profoundly influence later generations of thinkers.
Their ideas were preserved and expanded by Roman philosophers such as Cicero, rediscovered during the Renaissance, strengthened by the Scientific Revolution, and ultimately embraced by Enlightenment thinkers including Lord Herbert of Cherbury, John Locke, Thomas Paine, Thomas Jefferson, and Benjamin Franklin. By the time Deism emerged as a distinct philosophy, it had inherited centuries of intellectual development.
Today, Deism continues this tradition by affirming that reason, science, and the study of nature are among humanity's most reliable guides to understanding God, the universe, and our place within it. The philosophical journey that began in ancient Greece remains at the very heart of modern Deist thought.
Lord Herbert of Cherbury — England
De Veritate — Latin for "On Truth, as It Is Distinguished from Revelation, the Probable, the Possible, and the False" — is Lord Herbert of Cherbury's first systematic exposition of Deist principles, and the first major statement of Deism in the English language, laying the groundwork for what would become the Enlightenment tradition of natural religion.
Galileo Galilei — Italy
The Roman Inquisition's condemnation of Galileo for defending the heliocentric model became one of the defining moments in the conflict between church authority and scientific reason. For Enlightenment thinkers across Europe, it was a stark demonstration that institutional religion could not be trusted as the arbiter of truth about the natural world — and that the Creator was better understood through observation and reason than through scripture and doctrine. The trial accelerated the intellectual shift toward a non-interventionist God whose design was readable in nature itself.
Isaac Newton — England
Newton's Principia Mathematica revealed the universe as a vast, ordered system governed by precise mathematical laws — gravity, motion, planetary orbits all reducible to reason and observable fact. For Enlightenment thinkers, this was overwhelming evidence of a supremely intelligent Creator who had designed the cosmos with extraordinary precision and then allowed it to run by its own laws. The "clockwork universe" concept — God as the Great Architect who set the machine in motion and stepped back — became the intellectual cornerstone of Deism. Newton himself wrote that the elegant order of the solar system "could only proceed from the counsel and dominion of an intelligent and powerful Being."
John Toland — Ireland
John Toland argues that reason is the proper judge of religious truth — a landmark of Deist freethought and the conviction that Christianity contains nothing contrary to reason.
Matthew Tindal — England
Matthew Tindal's work becomes known as "the Deist's Bible."
Voltaire — France
Voltaire's satirical masterpiece challenges religious orthodoxy and promotes rational inquiry.
Jean-Jacques Rousseau — Switzerland
Rousseau's political philosophy, influenced by Deist thought, reshapes ideas about government.
American Colonies
At the heart of the American Revolution, Thomas Jefferson, deeply influenced by Enlightenment thought, chose language for the Declaration of Independence that reflected natural law and a Creator who grants rights — rather than citing any specific religious doctrine. Significantly, the Declaration invokes a universal Creator but deliberately avoids any reference to Jesus Christ, specific denominational teachings, or Christian scripture.
The Declaration contains four key phrases chosen by Jefferson that carry clear Deist meaning. They invoke a rational Creator knowable through nature and reason — not the God of any single church or creed. The phrases appear in the order Jefferson used them.
Phrase 1
This phrase reflects Deist beliefs in a Creator discernible through reason and natural law, rather than through organized religion or divine revelation.
……it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume, among the powers of the earth, the separate and equal station to which the laws of nature and of nature's God entitle them……
Phrase 2
The Declaration states that all men are "endowed by their Creator with certain unalienable Rights," suggesting a belief in a divine source of human rights — not a king, not a church, but a rational Creator.
…We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness.…
Phrase 3
This phrase appears in the closing section, where the signers appeal to divine justice for the rightness of their cause. It implies a moral order upheld by a higher power — a hallmark of Deist thinking.
…We, therefore, the representatives of the United States of America, in General Congress assembled, appealing to the Supreme Judge of the world for the rectitude of our intentions……
Phrase 4
The Declaration concludes with an expression of trust in "the protection of Divine Providence," acknowledging some form of divine guidance — the watchful, non-interventionist God of Deism.
…And for the support of this declaration, with a firm reliance on the protection of Divine Providence, we mutually pledge to each other our lives, our fortunes, and our sacred honor.…
United States of America
The Treaty of Paris was signed. Although the fighting effectively ended after the British defeat at Yorktown in 1781, the treaty officially ended the American Revolutionary War and established the United States as an independent nation recognized by Great Britain. It is one of the most important diplomatic agreements in American history. It secured the independence of a nation whose founding documents created the environment in which religious liberty and freedom of conscience could flourish.
United States of America
The First Amendment to the U.S. Constitution — "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof" — was the direct legal application of Deist principles embedded in the founding generation. It also protects freedom of speech, freedom of the press, and the right to peaceful assembly. Jefferson's "wall of separation between church and state" and Madison's conviction that religion thrives best free from government interference both trace directly to Deist thought: that conscience cannot be coerced, that truth is discoverable through reason rather than enforced doctrine, and that no single church or creed holds a monopoly on humanity's relationship with the Creator.
Thomas Paine — England / America
Thomas Paine's powerful defense of Deism becomes a bestseller on both sides of the Atlantic. It remains the world's most widely cited and preeminent publication on Deism — recommended reading for all Deists and potential followers of Deism.
Thomas Jefferson — Virginia, America
Thomas Jefferson creates his own version of the Gospels, titled The Life and Morals of Jesus of Nazareth. Working literally by hand with a razor, he cut the pages, removing every miracle, resurrection, and supernatural elements, keeping only the remaining moral passages and pasting them into a blank folio. He omitted all claims of divinity. The work was intended as a personal study tool, not for public dissemination. The original manuscript is preserved in the Smithsonian Institution.
New York, United States of America
Thomas Paine died on June 8, 1809, at the age of 72, in Greenwich Village, New York City. He died largely ostracized for his religious views, yet he remains one of the most important Deist thinkers of the American founding era. He was buried on his farm in New Rochelle, New York, which the state had granted him in recognition of his Revolutionary service. In 1819, English journalist and radical reformer William Cobbett exhumed Paine's bones and transported them to England, intending to give him a hero's burial and use his remains as a rallying symbol for the British parliamentary reform movement. The grand memorial never materialized. Cobbett died in 1835, the bones passed to his estate, and they subsequently vanished. The final resting place of Thomas Paine's remains is unknown to this day.
United States of America
On July 4, 1826 — the 50th anniversary of the Declaration of Independence — both Thomas Jefferson and John Adams died within hours of each other. Jefferson passed at Monticello in the early afternoon; Adams died that evening in Quincy, Massachusetts, his last words reported as "Thomas Jefferson survives" — unaware that his fellow founder had already gone. The remarkable coincidence was celebrated in American history as an act of Divine Providence. Both men had shaped the Deist intellectual framework of the new nation: Jefferson as the author of its founding creed, Adams as its second president and lifelong champion of reason, conscience, and religious liberty.
The philosophers, writers, and revolutionaries who shaped Deist thought and championed reason over revelation.
Presented in chronological order based on the year of death.
L to R: Franklin, Jefferson, Paine
Thinkers whose philosophy made Deism intellectually possible — presented in chronological order by year of death.
The writers, philosophers, and revolutionaries who championed Deism — presented in chronological order by year of death.
Thinkers whose beliefs overlapped with Deist principles, though they did not fully or formally identify as Deists — presented in chronological order by year of death.
Note — The list of historical figures provided above is a partial representation only. There are more historical figures presented in the book, An Alternative to Believing in Nothing: Deism for the 21st Century by SD Hagen.
The profound influence of Deist thought on America's founding documents, principles, and the minds of its revolutionary architects.
Thomas Jefferson, Benjamin Franklin, George Washington, James Madison, and Thomas Paine all held Deist or Deist-leaning beliefs. Their Deist convictions animated the American Revolution and shaped its founding documents. They championed reason over dogma, making Enlightenment philosophy the backbone of a new nation.
The Declaration states: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable rights, that among these are Life, Liberty and the pursuit of Happiness." This non-sectarian, Deist language derives rights from nature and nature's God — not from kings, scripture, or clergy.
Jefferson's "wall of separation" and Madison's Memorial and Remonstrance were direct applications of Deist principles — revolutionary ideas that religion is a private matter and government must remain neutral.
The First Amendment's guarantee of religious liberty was revolutionary. Deist founders believed conscience could not be coerced and that pluralism — not conformity — made a nation strong.
Since the mid-20th century, there has been ongoing debate among theologians and scholars over whether the United States was founded as a "Christian nation." The American Revolution's Continental Congress and the founding generation drew from a wide variety of religious backgrounds — Deists, Unitarians, Anglicans, Quakers, and freethinkers among them. Many of the most influential founders were openly skeptical of orthodox Christianity. They invoked a Creator and Providence, but pointedly avoided any reference to Jesus Christ, the Bible, or Christian doctrine in the nation's founding documents.
The U.S. Constitution (1787) is entirely secular. It does not mention God, Jesus Christ, or Christianity in its preamble or main text — "We the people" grounds the authority of government in the people, not divine right. The First Amendment explicitly states: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof" — a principle rooted directly in Deist and Enlightenment ideals of religious tolerance and the separation of church and state.
There is one document that historians point to that confirms the United States was not founded on Christianity. That document is the 1797 Treaty of Tripoli which was an agreement between the U.S. and the Barbary State of Tripoli (what is now Libya) that involved ensuring peaceful relations and protecting American ships from pirate attacks. Started by George Washington, signed by John Adams and ratified unanimously by a Senate still half-filled with signers of the Constitution, the treaty stated in part:
"As the Government of the United States of America is not, in any sense, founded on the Christian religion…it has in itself no character of enmity against the laws, religion, or tranquility of Mussulmen [Muslims]."
— Treaty of Tripoli, Article 11 (1797)
This article reassured the Muslim rulers that the U.S. would respect their sovereignty under the treaty.
Jefferson razored passages from printed Bibles and pasted them together — stripping every miracle and claim of divinity, keeping only the moral teachings. Smithsonian Institution, CC0.
In 1804, decades after the American Revolution he helped lead, Jefferson used a razor to physically cut the moral teachings of Jesus from two King James Bibles, pasting the remaining passages into a blank folio. He omitted all miracles, resurrection stories, supernatural elements, and claims of divinity — leaving only the ethical philosophy. The work, officially titled The Life and Morals of Jesus of Nazareth, is one of the most striking personal expressions of Deist belief in American history. The original manuscript is preserved in the Smithsonian Institution. For a full account, see the Key Historical Figures section.
Quote of the Day
"Superstition is to religion what astrology is to astronomy: the mad daughter of a wise mother."
— Voltaire
Essential terms and ideas for understanding Deism.
Existence in some form after physical death. Deism does not require belief in an afterlife, as it cannot be established through reason or observation of nature alone. Some individual Deists have speculated about immortality on rational grounds, but it remains a personal rather than a doctrinal matter. There is no Deist heaven, hell, or divine judgment of souls.
The preeminent publication on Deism, written by Thomas Paine in three parts between 1794 and 1807. Part I (1794) is a personal declaration of Paine's religious beliefs, affirming belief in God while rejecting organized religion and scripture. Part II (1795) examines the Old and New Testaments in detail, arguing the Bible was written by men, not by divine inspiration. Part III (1807), written after Paine returned to the United States, serves as a supplement and defense of his prior work — answering critics, expanding on biblical inconsistencies, and continuing to argue that true religion is about reason, morality, and natural law rather than supernatural stories. It remains the most widely cited expression of Deist philosophy.
The position that the existence of God or a higher power is unknown or unknowable. Agnostics do not claim to know whether a Creator exists. Distinct from Deism, which affirms belief in a Creator based on reason and observation of nature, and from atheism, which rejects the existence of a Creator.
The attribution of human characteristics — emotions, intentions, personality, desires, and moral preferences — to God. Most major religious traditions present a God who loves, becomes angry, rewards and punishes, listens to prayer, and intervenes in human affairs. Deism generally rejects this picture. The Deist Creator is rational and intelligent, but not personal in the human sense — not a being who takes sides in human disputes, grants favors, or resembles a magnified human personality. Thomas Paine argued that imagining God with human-like preferences and emotions was a projection of human vanity onto the infinite. For Deists, the Creator is better understood through the laws of the universe than through the stories of any religion.
The absence of belief in a Creator or god. Atheists do not believe in a divine intelligence behind the universe. Deism differs fundamentally from atheism: Deists believe in a Creator based on reason and the evidence of the natural world, while atheists reject such a belief entirely.
The prevailing cosmological theory that the universe originated approximately 13.8 billion years ago from an extraordinarily hot, dense state and has been expanding ever since. For Deists, the Big Bang is philosophically significant: if the universe had a definite beginning, it had a cause — and that cause, by definition, must lie outside the universe itself. Many Deists see the Big Bang not as a challenge to belief in a Creator but as scientific confirmation of what reason already suggests: that the universe is not eternal and self-explanatory, but the product of a prior intelligence.
A metaphor central to Deist thought: the natural world itself is God's true scripture, written in the language of mathematics, physics, and biology, and accessible to all human beings through reason — not locked inside any single religious text or tradition. Where revealed religions point to sacred books as the word of God, Deists point to the observable universe. Galileo declared that "the Book of Nature is written in the language of mathematics." Voltaire, Thomas Paine, and the American founders all drew on this metaphor to argue that the evidence for a Creator was universal and open to anyone willing to observe and reason, requiring no priestly intermediary.
Christian Deism is a historically attested but broad label for views that combine Deistic principles with an acceptance of Jesus's moral teachings. The term was used in the eighteenth century by some writers who explicitly called themselves Christian Deists, and it remains in use by scholars and other writers today. It is not a single standardized creed: some Christian Deists rejected Jesus's divinity, miracles, the resurrection, and traditional claims of scriptural revelation, while others accepted miracles, revelation, providence, or prayer. Thomas Jefferson's edited Bible, formally titled The Life and Morals of Jesus of Nazareth, is often cited as an example of ideas associated with Christian Deism because he retained Jesus's moral teachings while omitting miracles and other supernatural claims. Jefferson did not, however, explicitly identify himself as a "Christian Deist."
The foundational form of Deism, associated with Enlightenment thinkers such as Voltaire, Jefferson, and Paine. Holds that God created the universe and established natural laws, but does not intervene in human affairs. Knowledge of God is attained through reason and the observation of nature, not through scripture or revelation.
A central Deist analogy: God is like a clockmaker who crafted the universe, wound it up, and stepped back. The clock (universe) runs on its own according to the laws built into it. God does not intervene to adjust or repair. However, providence and its believed influence on outcomes by some Deists and Deist-leaning historical figures is noted in this glossary.
The tendency to seek out, favor, and remember information that confirms one's existing beliefs while discounting contradictory evidence. Deism, with its emphasis on reason and honest inquiry, calls on its adherents to actively guard against confirmation bias — including in their own reasoning about God, the universe, and moral questions.
A family of philosophical arguments for the existence of God based on the existence of the universe itself. The basic form: everything that exists has a cause; the universe exists; therefore it has a cause — a first, uncaused cause, identified with God. Deists frequently invoke this argument as rational evidence for a Creator without appealing to scripture or revelation.
In Deism, the supreme intelligence responsible for the origin of the universe and its natural laws. The Creator is not a personal God who answers prayers or performs miracles, but rather the rational architect whose existence is inferred from the order, complexity, and design observable in nature. Sometimes called the Supreme Architect or First Cause.
A philosophy and belief system holding that a Creator brought the universe into existence and established natural laws, but does not intervene in human affairs. Knowledge of God is attained through reason and the observation of nature — not through scripture, revelation, or religious authority. Deism is not a religion: it has no sacred texts, no worship practices, no formal meeting places, and no hierarchy.
The English word Deism ultimately traces back to the French word déiste (or earlier spelling deiste), meaning "one who believes in God." The history is interesting because the word emerged during a time of intense religious debate in Europe.
Here's the progression:
How the word originated
The term deist did not originally describe a specific philosophy. In the 16th century, it was often used simply to distinguish someone who believed in God from an atheist. At that point, it did not necessarily imply rejection of revealed religion.
One of the earliest known uses appears around 1564, when the French Protestant theologian Pierre Viret used the term déistes in a critical way. He described people who acknowledged the existence of God but rejected central Christian doctrines and church authority.
During the 17th century, especially in England, the meaning became much more precise. Thinkers began using Deism to describe the view that:
By the early 18th century, Deism had become a recognized philosophy and belief system.
The position that accepts the scientific evidence for biological evolution and the great age of the universe while holding that a Deistic Creator established the natural laws by which life and the cosmos developed, without direct supernatural intervention. Evolution addresses how life diversified; Deism addresses the deeper question of why a universe capable of producing life exists.
The philosophical view that all events, including human choices, are the inevitable result of prior causes operating according to natural laws. Determinism raises challenging questions for any belief in free will and moral responsibility. Deists who accept natural law as the governing principle of the universe must grapple with where, if anywhere, genuine human freedom fits within a causally ordered cosmos.
A set of principles or beliefs laid down by a religious authority and accepted as unquestionably true, often without empirical basis. Deism explicitly rejects dogma, holding that all beliefs about God and the universe should be evaluated through reason and evidence rather than accepted on the authority of institutions or texts.
The principle that all people are equal and deserve equal rights and opportunities regardless of race, religion, sexual orientation, or background. Egalitarianism is a consistent thread throughout Deist writings and wove its way into the Declaration of Independence and the U.S. Constitution.
The philosophical position that knowledge is derived from sensory experience and the observation of the natural world, rather than from innate ideas, tradition, or divine revelation. John Locke — one of the most influential figures in the development of Deism — was also the father of British empiricism. His Essay Concerning Human Understanding (1689) argued that the mind begins as a blank slate and acquires all knowledge through experience. This aligned naturally with the Deist conviction that God is known through the observation of nature, not through scripture or priestly authority. The entire Deist argument rests on an empiricist foundation: we examine the natural world, observe its order and complexity, and reason toward the existence of a Creator.
A European intellectual movement of the 17th and 18th centuries characterized by an emphasis on reason, science, and human potential over religious authority and superstition. The Enlightenment gave rise to Deism as a formal philosophy and produced many of its most prominent advocates — Voltaire, Locke, Rousseau, Paine, and Jefferson among them.
The branch of philosophy concerned with the nature, scope, and limits of human knowledge. Deists ground their epistemology in reason and empirical observation — what can be known about God and the universe must be discoverable through the rational mind and the natural world, not through divine revelation or sacred texts.
The branch of philosophy concerned with how one ought to act and what makes actions right or wrong. Deists derive ethics from reason, human dignity, and the observation of natural moral principles — not from sacred texts or religious authority. Ethical living is considered a natural expression of Deist belief, since the Creator endowed human beings with the reason needed to distinguish right from wrong.
Actions, events, or conditions that cause harm, suffering, or moral wrongdoing. For Deists, evil is not the result of a fallen world, demonic forces, or divine punishment. Because the Creator does not intervene in human affairs, evil — whether moral (caused by human choice) or natural (earthquakes, disease) — is a feature of the physical world operating according to natural law, and its remedy lies in human reason and action.
A modern version of the teleological argument: the fundamental constants of physics — gravity, the speed of light, the charge of an electron — are calibrated with extraordinary precision for life to exist. Even slight variations would render the universe lifeless. Deists see this cosmic precision as compelling evidence of a rational, intentional Creator.
The argument that all events have prior causes, and that this causal chain cannot extend back infinitely — it must terminate in a first, uncaused cause. Deists identify this First Cause with the Creator: the intelligent force that initiated the universe and established its laws, but does not intervene in its ongoing operation.
The capacity of individuals to make genuine choices unconstrained by prior causes or divine predetermination. Deism, by holding that God does not intervene in human affairs, implicitly affirms human free will: people are moral agents responsible for their own choices and their consequences. There is no divine plan overriding human decisions.
Most Deists believe God possesses perfect knowledge of all reality. Where Deists differ is whether that includes infallible knowledge of every future free human choice, or whether omniscience consists of knowing everything that is logically knowable while allowing genuine human freedom.
A philosophical position that opinions should be formed on the basis of logic, reason, and empiricism, rather than authority, tradition, or dogma. Freethought is closely allied with Deism and the Enlightenment. Freethinkers reserve the right to question any claim — religious or otherwise — that cannot be supported by evidence and reason.
The abundant beauty found throughout nature that appears to serve no essential practical purpose, suggesting that the universe contains aesthetic richness beyond mere utility.
The concept of gratuitous beauty is often used in arguments about the nature of the universe and the existence of God. The reasoning goes something like this:
The formal charge of holding religious beliefs that deviate from the officially sanctioned doctrines of an established church. In the context of Deist history, heresy was a real legal and social danger. John Toland's Christianity Not Mysterious (1696) was ordered burned by the Irish Parliament. Matthew Tindal's Christianity as Old as the Creation (1730) was condemned and suppressed. Charles Blount faced official censure throughout his career. Many Deists published anonymously or framed their arguments carefully to avoid prosecution. Understanding what heresy meant — and the genuine risk it carried — is essential to appreciating the intellectual courage of the Enlightenment thinkers who advanced Deist ideas publicly at a time when doing so could cost them their freedom, their reputation, or their lives.
The quality of being present and active within the world. In traditional Christianity, God is considered immanent — performing miracles, answering prayers, and guiding human history. Deism rejects divine immanence, holding instead that God is transcendent: having created the universe, the Creator does not intervene in its workings.
A conception of God as a divine intelligence or creative force that does not have human-like emotions, relationships, or personal involvement with individuals. The Deist God is impersonal in this sense: not a being who answers prayers, rewards the faithful, or punishes sinners, but rather the rational architect whose presence is felt through the orderly laws of the universe.
The philosophical problem that arises when explaining a cause requires positing another cause behind it, and so on without end. A classic example of infinite regress is: "If God created the universe, then who created God?" The impossibility or incoherence of an infinite regress of causes is a key premise in the cosmological and first cause arguments for God's existence — arguments that Deists find persuasive as rational grounds for belief in a Creator.
The argument that certain features of the universe and living things are best explained by an intelligent cause rather than an undirected process such as natural selection. While associated today with certain religious movements, Deists have long made a version of this argument: the order, complexity, and elegance of nature point to a rational Creator.
An edited version of the New Testament compiled by Thomas Jefferson, who omitted miracles, the resurrection, and other supernatural claims while retaining the moral and ethical teachings of Jesus. Formally titled The Life and Morals of Jesus of Nazareth, it is often cited as an example of ideas associated with Christian Deism, but Jefferson did not explicitly use that label for himself.
An event attributed to divine intervention that appears to suspend or override the laws of nature. Deists reject the concept of miracles, arguing that a perfect Creator established perfect natural laws that do not require suspension. As Thomas Paine wrote: "What can be a greater miracle than the creation itself?"
A contemporary interpretation of Classical Deism that incorporates modern philosophical, scientific, and ethical perspectives while maintaining core Deistic beliefs in a non-interventionist Creator. Some modern Deists embrace elements of spirituality or ethical humanism, but generally reject dogma, miracles, and the idea of a personal God who intervenes in human affairs.
The dramatic advances in molecular biology from the mid-20th century onward — particularly the discovery of DNA's double-helix structure by Watson and Crick in 1953 — that revealed the staggering complexity of life at the cellular level. For Deists, the information-rich architecture of DNA is among the most compelling rational evidence of a designing intelligence. As Bill Gates observed: "DNA is like a computer program but far, far more advanced than any software ever created." The full argument is explored in the Is There a God? section.
The branch of philosophy concerned with questions of right and wrong, virtue, and how humans ought to live. Deism grounds morality in reason and human dignity rather than divine command or religious doctrine. Thomas Jefferson wrote: "He who made us would have been a pitiful bungler if he had made the rules of our moral conduct a matter of science" — morality, he believed, is innate.
A term coined by sociologists Christian Smith and Melinda Lundquist Denton in their 2005 study Soul Searching to describe the de facto religion of many American teenagers and young adults. Its core beliefs: a God exists who created the world and watches over it; God wants people to be good and fair; the central goal of life is to be happy and feel good about oneself; God is not involved in daily life except when needed to solve a problem; and good people go to heaven when they die. Moralistic Therapeutic Deism is distinct from classical Deism — it retains a vaguely intervening, problem-solving God and lacks Deism's grounding in reason, natural theology, and the rejection of revelation. The name borrows "Deism" loosely, as both involve a somewhat distant God, but the resemblance ends there.
Principles distinguishing right from wrong behavior. Deism grounds morality in reason and human nature — the innate capacity to recognize the suffering of others and act accordingly — rather than in divine command or fear of punishment. Thomas Jefferson wrote that the moral sense is "as much a part of our constitution as that of feeling," built into us by the Creator.
The consistent, immutable principles that govern the physical universe — gravity, thermodynamics, biological processes — established by the Creator at the moment of creation. For Deists, natural law is the primary evidence of God's existence and character. The universe runs according to these laws without ongoing divine adjustment.
Religious belief derived from reason and the observation of nature, rather than revelation, scripture, or religious authority. Deists hold that the existence and attributes of God can be discerned through the natural world alone. Natural religion stands in contrast to revealed religion, which depends on claims of divine communication to prophets or through sacred texts.
The attempt to gain knowledge of God through reason and the observation of the natural world, independent of scripture or religious tradition. Natural theology is the intellectual foundation of Deism: the orderliness, complexity, and beauty of nature are taken as evidence of a rational Creator.
A term used in survey research to describe people who identify with no organized religion — including atheists, agnostics, and those who describe themselves as "nothing in particular." Polling data shows this group has grown substantially in recent decades. Many "Nones" hold views compatible with Deism, often describing themselves as spiritual but not religious.
The principle that, all else being equal, the simplest explanation requiring the fewest assumptions is to be preferred. Attributed to the 14th-century philosopher William of Ockham, it became a cornerstone of Enlightenment rational inquiry. Deists apply it to arguments about God: a single rational Creator who established natural laws is simpler than a pantheon of intervening deities or a universe requiring constant miraculous adjustment.
Omniscient means all-knowing; omnipotent means all-powerful. Both attributes are traditionally ascribed to God in Abrahamic religions. Deism does not categorically reject these concepts, but holds that they exceed what reason and the observation of nature can confirm. What the natural world demonstrates is a Creator of extraordinary intelligence and power — sufficient to design and set in motion a universe of breathtaking complexity. Whether that Creator is literally unlimited in knowledge and power in an absolute sense is a question Deism regards as beyond human determination. Intellectual honesty requires acknowledging the boundary between what reason can establish and what it cannot.
Here's how the major perspectives break down:
Classical Deism
Most classical Deists of the 17th and 18th centuries accepted that God is:
For them, God's omniscience was part of His perfection. However, because God generally does not intervene in the operation of the universe after creation, His omniscience does not imply continual miracles or responses to prayer.
Modern Deism
Modern Deists hold a wider range of views.
Some believe:
Others argue:
This view does not suggest God is limited; rather, it defines omniscience as complete knowledge of everything that can be known.
An institutionalized system of belief, worship, ritual, and governance centered on a shared theology. Deism explicitly rejects organized religion, holding that such institutions have historically distorted genuine belief through dogma, superstition, and the exercise of social and political power. As Thomas Paine wrote, each church "shows a book and calls it the word of God" — substituting human invention for the universal revelation of nature.
A philosophical position that combines elements of Pantheism and Deism. Where classical Deism holds that God created the universe and remains distinct from it, pandeism proposes that the Creator transformed into the universe at the moment of creation — becoming it completely — and in so doing ceased to exist as a separate conscious being. The universe, in pandeism, is what God became. This view preserves the Deist rejection of an intervening personal God (since the Creator no longer exists as a separate entity capable of intervention) while departing from the classical Deist picture of a Creator who stands wholly apart from creation.
Panendeism combines elements of panentheism and Deism. It holds that God is the source and creator of the universe and that the universe exists within God, while maintaining the Deistic view that God does not intervene supernaturally in the ongoing workings of the universe. God is therefore both immanent within creation and transcendent beyond it.
Panentheism is the belief that God is present in and permeates the entire universe, while also transcending it. In contrast to pantheism, which identifies God with the universe itself, panentheism holds that the universe exists within God, but God is greater than the universe and cannot be reduced to it.
The philosophical view that God and the universe are identical — that nature, in its totality, is divine. Baruch Spinoza, a major influence on Enlightenment Deists, argued that God and nature are one and the same. Unlike classical Deism, pantheism does not posit a Creator who stands apart from creation.
An argument by the 17th-century French philosopher Blaise Pascal: even if God's existence cannot be proven, it is rational to believe, because the cost of belief is low and the potential gain (eternal reward) is infinite, while the cost of disbelief — if God does exist — is catastrophic. Deists generally reject Pascal's Wager on two grounds: first, it appeals to self-interest rather than reason and evidence; second, it does not help one determine which conception of God to believe in. Deism holds that belief in a Creator should follow from honest rational inquiry, not from a calculated bet.
A concept from Aristotle's philosophy: the ultimate source of all motion and change in the universe, itself unmoved and uncaused. Eternal, immaterial, and purely rational, Aristotle's Prime Mover influenced Enlightenment Deists who saw it as a philosophical forerunner of the Deist Creator — an intelligence behind the cosmos that set it in motion but does not intervene in its workings.
In Deist thought, Providence refers to God's original design and creation of natural laws, not ongoing intervention. God does not meddle; the universe operates according to immutable principles established at creation. However, some Deists and Deist-leaning historical figures believed a watchful Creator can and does influence outcomes through providence. George Washington is one example, often speaking of providence in his writings.
The philosophical position that reason is the primary source of knowledge and justification, superior to sensory experience or religious authority. Rationalism is a cornerstone of Deism: Deists hold that reason — not scripture, prophecy, or church tradition — is the appropriate tool for understanding God, morality, and the universe.
The faculty of rational thought, logical inference, and evidence-based judgment. For Deists, reason is the primary — and sufficient — tool for understanding God, the universe, and moral duty. Unlike revealed religions that defer to scripture or clergy, Deism holds that any truth worth knowing about the Creator is accessible to any thinking person through reason alone. Thomas Paine stated plainly: "My own mind is my own church."
The disclosure of divine truth through supernatural means — visions, prophecy, scripture, or miracles. Deists reject revelation, arguing that God reveals truth universally through nature and reason, not selectively through prophets or sacred texts. As Thomas Paine wrote, a revelation could only be authentic to the first person who received it; all subsequent believers are merely taking that witness's word for it.
A philosophy that embraces human reason, ethics, and philosophical naturalism while rejecting religious dogma and the supernatural. Secular humanism shares Deism's emphasis on reason and moral responsibility but does not posit a Creator. Humanistic Deism is a related variant that retains belief in a Creator while sharing secular humanism's ethical framework.
The principle that government should operate independently of religious institutions and that individuals should be free to hold their own beliefs without state interference. Thomas Jefferson, a Deist, was its most influential American advocate — authoring the Virginia Statute for Religious Freedom (1786) and famously writing of "a wall of separation between church and state" in his 1802 letter to the Danbury Baptists.
The practice of applying rigorous, evidence-based questioning to any claim before accepting it as true. Skeptical inquiry is a cornerstone of Deist epistemology: no belief — including belief in God — should be accepted on authority alone. Voltaire captured the Deist spirit: "It is dangerous to be right in matters where established authorities are wrong."
A self-description used by a growing number of people who reject organized religion but maintain a sense of spiritual meaning or connection. SBNR individuals often find that description in nature, personal reflection, or a general sense of the divine — a posture highly compatible with Deism, though many SBNRs are unaware of Deism as a named tradition.
Physical or emotional pain and distress. In Deism, suffering is not interpreted as divine punishment, test, or lesson — the Creator does not orchestrate individual suffering for a purpose. It is instead the natural result of a universe governed by consistent physical laws. The appropriate Deist response to suffering is compassion and practical action, not prayer or submission to an intervening divine will.
Belief in the supernatural causation of events, often involving fear, ritual, or magical thinking unsupported by reason or evidence. Deists view superstition as the corruption of genuine religious feeling. Voltaire captured this precisely: "Superstition is to religion what astrology is to astronomy — the mad daughter of a wise mother."
A Deist term for the Creator — the intelligent force responsible for designing and bringing the universe into existence. The term reflects the Deist view of God as a rational designer rather than a personal, intervening deity. The order and complexity of the natural world are taken as evidence of this Architect's existence.
Also known as the argument from design, this holds that the order, complexity, and apparent purpose observable in nature point to an intelligent designer. The intricate structure of a living cell, the laws of physics, the elegance of the cosmos — all are cited as evidence of a purposeful Creator. The teleological argument is central to Deist thought and was a favorite of Enlightenment thinkers including Voltaire and Thomas Paine.
The belief in a personal God who created the universe and remains actively involved in it — hearing prayers, performing miracles, and guiding human history. Theism is the dominant position of traditional Christianity, Islam, and Judaism. Deism shares theism's affirmation of a Creator but rejects its defining feature: ongoing divine intervention and a personal relationship between God and individual human beings.
The philosophical problem of reconciling the existence of evil and suffering with an omnipotent, benevolent God. Deists often resolve this by rejecting divine intervention: suffering is not punishment or a test, but the natural consequence of physical laws operating as the Creator designed them.
The quality of existing beyond or above the physical or material world. In Deism, God is wholly transcendent — having created the universe and its laws, the Creator does not intervene in human affairs. This stands in contrast to the Christian concept of an immanent God who is actively present and engaged in the world.
A stable, excellent trait of character — honesty, courage, justice, compassion — that disposes a person toward right action. Deists ground virtue in reason and human nature rather than divine command. Benjamin Franklin's famous list of thirteen virtues, which he practiced with systematic self-discipline, is a celebrated Deist example of pursuing moral excellence through rational effort rather than religious obligation.
Primary sources, modern scholarship, and contemporary perspectives for readers who want to explore Deism more deeply. Availability is provided in plain text; no purchase links are included.
Each selection is identified as either a Deist writing or a work influential to or associated with Deism; inclusion does not imply that every author was a Deist.
This section is organized into four subsections:
Historical Primary Works
Foundational texts by early Deist and Enlightenment writers. Several preserve historical language because no verified contemporary-English edition is available.
Note: Latin was the language used for serious philosophical works even by English authors because it was essentially the international scholarly language of Europe. An English philosopher writing only in English would primarily reach English readers, while writing in Latin meant scholars in France, Germany, Italy, the Netherlands, and elsewhere could read and debate the work. A few publications have been translated into modern English. De Veritate by Lord Herbert of Cherbury and Candide by Voltaire are two examples.
Modern Studies and Biographies
Modern historical and philosophical scholarship on Deism, religious rationalism, and the beliefs of the American founders.
Contemporary Deist Writing
Recent introductions, arguments, and practical reflections written from contemporary Deist perspectives.
Science, Religion, and the Unaffiliated
Related contemporary works on scientific arguments for design and the growth of religiously unaffiliated Americans.
Foundational texts by early Deist and Enlightenment writers. Several preserve historical language because no verified contemporary-English edition is available.
Thomas Paine · 1794–1807
Stephen W. Dowell edition, 2001
Deist writing
Where to find it: Amazon, Barnes & Noble, AbeBooks, independent bookstores, and public libraries.
Edward, Lord Herbert of Cherbury · 1624
Translated with an introduction by Meyrick H. Carré
Deist writing
Where to find it: Internet Archive, Google Books, HathiTrust, and research libraries; English translations may be found through used-book sellers.
Thomas Paine · 1776
Coventry House Publishing edition, 2016
Influential to or associated with Deism
Where to find it: Amazon, Barnes & Noble, independent bookstores, public libraries, and free public-domain archives.
Voltaire · 1759
Influential to or associated with Deism
Where to find it: Major bookstores, independent bookstores, public libraries, and free public-domain archives.
Jean-Jacques Rousseau · 1762
Originally published within Émile, or On Education
Deist writing
Where to find it: Modern editions of Émile from major bookstores, independent bookstores, public libraries, and university libraries; historical editions are available through public-domain archives.
Voltaire · 1769
First English translation, Prometheus Books, 2010
Deist writing
Where to find it: Amazon, AbeBooks, used-book sellers, and public or university libraries.
Benjamin Franklin · 1791
First published in French; first English edition, 1793
Influential to or associated with Deism
Where to find it: Major bookstores, independent bookstores, public libraries, and free public-domain archives.
Thomas Paine · 1791–1792
Influential to or associated with Deism
Where to find it: Major bookstores, independent bookstores, public libraries, and free public-domain archives.
Charles Blount · 1693
Deist writing
Where to find it: Internet Archive, Early English Books Online, Google Books, and research libraries.
John Toland · 1696
Deist writing
Where to find it: Internet Archive, Early English Books Online, Google Books, HathiTrust, and research libraries.
Francis Gastrell · 1709
Two dialogues concerning Christian revelation and natural religion
Influential to or associated with Deism
Where to find it: Google Books, HathiTrust, Internet Archive, and research libraries.
Anthony Ashley Cooper, Third Earl of Shaftesbury · 1711
Influential to or associated with Deism
Where to find it: Modern scholarly reprints, Internet Archive, Google Books, HathiTrust, university libraries, and used-book sellers.
Anthony Collins · 1713
Deist writing
Where to find it: Internet Archive, Early English Books Online, Google Books, HathiTrust, and research libraries.
Anthony Collins · 1724
Deist writing
Where to find it: Internet Archive, Google Books, HathiTrust, Early English Books Online, research libraries, and historical reprints.
Thomas Woolston · 1727–1730
Garland Publishing reprint, 1979
Deist writing
Where to find it: Project Gutenberg, Internet Archive, Google Books, university libraries, and used-book sellers.
Matthew Tindal · 1730
Forgotten Books edition, 2012
Deist writing
Where to find it: Forgotten Books, Amazon, AbeBooks, Google Books, Internet Archive, and research libraries.
Thomas Morgan · 1737–1740
Three-volume dialogue by “Philalethes, a Christian Deist”
Deist writing
Where to find it: Internet Archive, Google Books, HathiTrust, research libraries, and historical reprints.
Thomas Chubb · 1738
Deist writing
Where to find it: Internet Archive, Google Books, HathiTrust, research libraries, and historical reprints.
John Leland · 1754–1756
Three-volume contemporary critique of Deism
Influential to or associated with Deism
Where to find it: Internet Archive, Google Books, HathiTrust, university libraries, and historical reprints.
Ethan Allen · 1784
Zinc Read edition, 2023
Deist writing
Where to find it: Amazon and other online booksellers; historical editions are also available through Google Books, Internet Archive, and research libraries.
Elihu Palmer · 1801
Zinc Read edition, 2023
Deist writing
Where to find it: Amazon and other online booksellers; historical editions are also available through Internet Archive and research libraries.
Thomas Jefferson · 1820
Lakewood Publishing edition, 2011
Influential to or associated with Deism
Where to find it: Amazon, Barnes & Noble, used-book sellers, public libraries, and Smithsonian editions.
Modern historical and philosophical scholarship on Deism, religious rationalism, and the beliefs of the American founders.
Kerry S. Walters · 1992
University Press of Kansas
Influential to or associated with Deism
Where to find it: University Press of Kansas, Amazon, independent bookstores, university libraries, and used-book sellers.
Edwin S. Gaustad · 1996
Wm. B. Eerdmans Publishing Co.
Influential to or associated with Deism
Where to find it: Eerdmans, Amazon, Barnes & Noble, independent bookstores, public libraries, and used-book sellers.
Peter Byrne · 1989
Routledge Library Editions
Influential to or associated with Deism
Where to find it: Routledge, university libraries, interlibrary loan, and used-book sellers.
Peter Gay · 1968
D. Van Nostrand Company
Influential to or associated with Deism
Where to find it: Internet Archive, university libraries, interlibrary loan, and used-book sellers.
David L. Holmes · 2006
Oxford University Press
Influential to or associated with Deism
Where to find it: Oxford University Press, Amazon, Barnes & Noble, independent bookstores, and public libraries.
Wayne Hudson · 2009
Pickering & Chatto; Routledge reprint, 2016
Influential to or associated with Deism
Where to find it: Routledge, ebook retailers, university libraries, interlibrary loan, and used-book sellers.
Jeffrey R. Wigelsworth · 2009
Manchester University Press
Influential to or associated with Deism
Where to find it: Manchester University Press, ebook retailers, university libraries, interlibrary loan, and used-book sellers.
Kerry S. Walters · 2011
Prometheus Books
Influential to or associated with Deism
Where to find it: Amazon, Barnes & Noble, used-book sellers, and public or university libraries.
Joseph Waligore · 2023
Lexington Books
Influential to or associated with Deism
Where to find it: Lexington Books, Amazon, Barnes & Noble, university libraries, interlibrary loan, and used-book sellers.
Recent introductions, arguments, and practical reflections written from contemporary Deist perspectives.
Robert Corfe · 2007
Arena Books
Deist writing
Where to find it: Arena Books, Amazon, used-book sellers, and public or university libraries.
Bob Johnson · 2009
World Union of Deists
Deist writing
Where to find it: Amazon, World Union of Deists publications, used-book sellers, and library catalogs.
Contemporary Deism Project · 2009–2010
Front Room Enterprises
Deist writing
Where to find it: Amazon, used-book sellers, and library catalogs.
Bob Johnson · 2014
World Union of Deists
Deist writing
Where to find it: Amazon, World Union of Deists publications, used-book sellers, and library catalogs.
Robert Cook · 2024
Deist writing
Where to find it: Amazon and other online booksellers.
S.D. Hagen · 2025
Deist writing
Where to find it: Amazon in print and Kindle editions.
Related contemporary works on scientific arguments for design and the growth of religiously unaffiliated Americans.
Stephen C. Meyer · 2009
Influential to or associated with Deism
Where to find it: Major bookstores, independent bookstores, public libraries, and audiobook retailers.
Stephen C. Meyer · 2021
Influential to or associated with Deism
Where to find it: Major bookstores, independent bookstores, public libraries, ebook stores, and audiobook retailers.
Ryan P. Burge · 2023
Second edition, Fortress Press
Influential to or associated with Deism
Where to find it: Fortress Press, Amazon, Barnes & Noble, independent bookstores, and public or university libraries.
If you find yourself relating well to the information presented here and you want to learn more, you may be interested in acquiring the book upon which much of the information is based...
Key themes from An Alternative To Believing In Nothing: Deism for the 21st Century©
by S.D. Hagen
Written as a personal journal for the author's son and expanded for all readers, this book makes the case that millions of Americans already hold Deist beliefs — they simply don't have a name for what they believe.
Available on AmazonThe Question That Started It All
"So what do you believe in?
You do not believe in nothing, do you?"
— The author's brother-in-law. These words became the book's title and its driving question.
Hagen opens with the question that launched everything — asked by his brother-in-law after attending a church service as a guest: "Scott, what do you believe in? You do not believe in nothing, do you?" Those words stuck. Having grown up in a household without formal religion, Hagen had drifted through adulthood calling himself agnostic — but found the label hollow: "Saying I was agnostic left me with a feeling of emptiness because it implied that I would believe in nothing until some sort of proof showed up at my doorstep." A series of personal losses — his father, nephew, mother, brother, wife, and sister within a few years — accelerated his search for a belief system that fit who he actually was.
"I found a philosophy and belief system that fits me, and it may be what you are looking for as well." — S.D. Hagen
Hagen grounds the book in data. According to the most recent Pew Research Center Religious Landscape Study, 29% of U.S. adults — roughly 76 million people — are now "religiously unaffiliated." That group, aka the "nones", break down into atheists (17%), agnostics (20%), and "nothing in particular" (63%). Christianity has dropped from 78% in 2007 to 62% today. The chapter also introduces Moralistic Therapeutic Deism (MTD), a term coined by sociologists to describe the implicit faith of millions of younger Americans: a benevolent but non-intervening God, a moral life, and little else. Hagen argues that many in the "nones" category are unknowingly functional Deists.
The fastest-growing religious category in America is the unaffiliated. Many of them already hold Deist beliefs — they just have no name for what they believe.
Hagen offers five definitions of Deism ranging from Samuel Johnson's 1755 dictionary ("those that only acknowledge one God, without the reception of any revealed religion") to the World Union of Deists ("the recognition of a universal creative force greater than that demonstrated by mankind, supported by personal observation of laws and designs in nature and the universe"). Classical Deism holds that God is the "First Cause" who established the universe and its natural laws but does not intervene. Importantly, the chapter clears up common misconceptions: Deism is not atheism, not agnosticism, not a form of Christianity, not extinct, and not cold or mechanical.
"Deism is a belief in the existence of a God on the evidence of reason and nature only, with rejection of supernatural revelation." — Common dictionary definition cited by Hagen
The philosophical heart of the book. Hagen begins with a phrase that anchored his own conversion: "The designs presuppose a designer." He traces the cosmological argument from Aristotle's "Unmoved Mover" through Aquinas's Five Ways, showing how the idea of a First Cause has persisted across philosophy and theology. He then turns to modern science: the Big Bang establishes that the universe had a beginning, which demands a cause. The chapter also examines the Origin of Life problem — the extraordinary complexity of even a single living cell — and the discovery of the complex code found in DNA, as further evidence that intelligence, not chance, underlies existence. If the DNA from one human being was laid out end to end, the string would be long enough to reach the distance to the Sun and back from Earth an astounding 47 times. Famed Atheist Richard Dawkins himself has said: "I am knocked sideways with wonder at the miniature intricacy of the internal structure of a single living cell." and "The machine code of the genes is uncannily computer-like. Apart from differences in jargon, the pages of a molecular biology journal might be interchanged with those of a computer engineering journal."
"The designs presuppose a designer." This phrase is the single most powerful yet simple statement that supports the idea of a Supreme Architect.
This chapter makes the book's central argument explicit: up to 63 million Americans — approximately 23% of the adult population — may already hold Deist beliefs unknowingly, without knowing the word. The "nones" who reject organized religion but still sense a higher power, who trust science but feel there's something more, who have no use for scripture but live by moral principles — these are, Hagen argues, unconscious Deists. He addresses five common concerns (uncertainty about God, skepticism of scripture, conflict with science, aversion to institutions, and the unknowability of God's nature) and shows how Deism answers each without demanding blind faith.
"If someone believes in a Creator but does not subscribe to a religious institution, follow scriptures, or believe in divine intervention, they fit the core definition of what a Deist is." — S.D. Hagen
Hagen makes the case for Deism's contemporary relevance across several dimensions. On science: "A Deist does not see science as a threat to belief but as a tool to appreciate the universe's complexity and order." On theodicy: by removing a personal intervening God from daily events, Deism offers a more honest account of suffering — natural disasters and disease are consequences of a self-sustaining universe, not divine punishment. On freedom: Deism requires no tithe, no attendance, no clergy, no creed. The chapter closes with a poem by Joseph Addison — "Ode" (1712) — in which the stars "utter forth a glorious voice / Forever singing as they shine / The hand that made us is divine."
"Deism provides a dedicated framework for reconciling faith with the growing body of scientific knowledge and a place for Deism in modern society. By emphasizing reason and observation, Deism enables believers to accept scientific discoveries without feeling compelled to deny or distort their religious doctrine."
The book's most practical chapter. Hagen recommends a curriculum beginning with Thomas Paine's The Age of Reason, then Common Sense, then modern works by Kerry Walters, Bob Johnson, and David Holmes. He proposes "field work": a Dark Sky astronomical viewing, a nature trip, a civic volunteer duty. For spiritual fulfillment: "Since Deists do not believe in a personal God, we do not engage in prayer. That said, spirituality and spiritual fulfillment are achieved through personal reflection, reason, and observing the natural world." The chapter closes with Benjamin Franklin's Thirteen Virtues — temperance, silence, order, resolution, frugality, industry, sincerity, justice, moderation, cleanliness, tranquility, chastity, and humility — as a model for Deist ethical living.
"Living as a Deist is not much different than living like anyone else who values a belief system. Most people possess good moral character and strive to lead virtuous lives." — S.D. Hagen
The penultimate chapter carries a single sustaining message: keep an open mind. Deism does not demand certainty — it demands curiosity. Unlike organized religion, which often discourages doubt, Deism thrives on questioning and embraces revision as new knowledge arrives. Hagen turns to the cosmos for perspective: our galaxy holds 100–400 billion stars, and the observable universe spans 93 billion light-years across at least two trillion galaxies. He examines the Fermi Paradox — why haven't we encountered extraterrestrial life? — and works through the mathematics of interstellar distance using Einstein's Theory of Special Relativity, showing that even at 10% the speed of light it would take 42.4 years just to reach the nearest potentially habitable planet. He shares Carl Sagan's Pale Blue Dot and NASA's James Webb Space Telescope as humbling reminders of our place in creation. The chapter closes with Hagen's personal list of five unanswered questions about existence — we do not know why the universe began, how life began, or what our existence means — and an informal Deist trinity: God, Reason, Nature.
"As a Deist, I can respect and admire the painting without knowing the painter." — S.D. Hagen
The final chapter is an extensive anthology curated by Hagen to illustrate the depth and breadth of Deist and Enlightenment thought — spanning from ancient Greece through the 21st century. Featured figures include Aristotle, Galileo, Lord Herbert of Cherbury, Baruch Spinoza, John Locke, Isaac Newton, Matthew Tindal, Voltaire, Denis Diderot, Ethan Allen, Benjamin Franklin, George Washington, Thomas Jefferson, Elihu Palmer, and Thomas Paine — along with women of Deist views including Mary Wollstonecraft, Margaret Fuller, and Frances Wright, and modern voices such as Carl Sagan, Albert Einstein, and Neil deGrasse Tyson. Also included in full are Thomas Jefferson's landmark 1787 letter to his nephew Peter Carr — a guide to reason, religion, and moral philosophy — and Thomas Paine's 1804 essay "Of the Religion of Deism Compared to the Christian Religion," which argues that Deism is the only belief system in which reason and faith are happily united: "There is a happiness in Deism, when rightly understood, that is not to be found in any other system of religion."
"Every person, of whatever religious denomination he may be, is a Deist in the first article of his creed. Deism, from the Latin word Deus, God, is the belief of a God, and this belief is the first article of every man's creed." — Thomas Paine, 1804
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Thank you for your interest in Deism, a belief system deeply rooted in European and American History and applicable more than ever in today's world.
May you find your spiritual peace.
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