The Work and Its True Authorship
“Superstition in All Ages” is the English title most commonly given to “Le Bon Sens,” though it is more frequently known by another title: “Testament of Jean Meslier” or “Memoir of the Thoughts and Sentiments of Jean Meslier.” This work presents a fundamental problem of attribution that must be addressed at the outset. While Baron d’Holbach’s name appears on many editions, the work is actually based on the writings of Jean Meslier, a French Catholic priest who died in 1729. Meslier left behind a lengthy manuscript that constituted a comprehensive denunciation of Christianity and religion in general, written secretly during his lifetime while he continued to perform his duties as a parish priest.
D’Holbach’s role was as editor and publisher of an extract or adaptation of Meslier’s original manuscript, which he circulated in the 1760s. The original Meslier manuscript was far longer and more repetitive than the versions that circulated in the eighteenth century. D’Holbach condensed, edited, and in some cases likely supplemented Meslier’s arguments, fitting them into the broader program of Enlightenment anti-religious polemic. The work thus represents a collaboration across time between a rural priest’s secret atheistic testament and an Enlightenment baron’s editorial project.
The Central Argument: A Systematic Demolition of Religion
The fundamental thesis of “Superstition in All Ages” is uncompromising: all religion is superstition, Christianity is a tissue of absurdities and contradictions, the existence of God cannot be demonstrated and is in fact impossible, and religion serves primarily as an instrument of oppression wielded by priests and rulers to keep the common people in subjection. The work is one of the most radical atheistic texts of the eighteenth century, going far beyond deism or religious skepticism to advocate outright materialism and the complete rejection of all theological claims.
The argument proceeds systematically through several major lines of attack. First, it demolishes the rational foundations claimed for religious belief, showing that the concept of God is incoherent and that the arguments offered for divine existence fail. Second, it attacks the moral claims of religion, arguing that religious morality is arbitrary, cruel, and inferior to natural morality based on human needs and social utility. Third, it exposes what it presents as the political function of religion as a tool of tyranny. Fourth, it offers a naturalistic account of religion’s origins in human ignorance and fear. Finally, it sketches an alternative vision of human life and society freed from religious superstition.
The Incoherence of the God Concept
The work begins its assault by examining the very concept of God as presented by Christian theology. It argues that this concept is fundamentally incoherent—a collection of contradictory attributes that cannot possibly coexist in a single being. God is said to be infinite, yet is described as having particular qualities and performing particular actions, which would limit him. God is said to be immaterial spirit, yet spirit is presented as acting on matter, which is impossible since only material things can cause material effects. God is said to be unchanging and eternal, yet is described as creating the world at a particular moment and responding to human prayers and actions, which implies change.
The work pays particular attention to the problem of divine attributes. God is said to be perfectly good, yet the world is full of evil and suffering. God is said to be all-powerful, yet evil exists, which means either he cannot prevent it (contradicting omnipotence) or will not prevent it (contradicting perfect goodness). God is said to be perfectly just, yet he punishes finite sins with infinite torment, and punishes or rewards people for beliefs and actions that are themselves determined by the nature and circumstances he gave them. God is said to be all-knowing, yet human beings are said to have free will, which is impossible if God already knows what they will choose.
These contradictions are not mere philosophical puzzles, the work argues, but demonstrations that the God of theology is an impossible being, a self-contradictory fiction. The work suggests that theologians have deliberately cultivated mystery and incomprehensibility, declaring God’s nature to be beyond human understanding precisely because the concept makes no sense. When pressed on contradictions, theologians retreat to claims about divine mystery, but this is simply an admission that their doctrine is incoherent.
The Failure of Arguments for God’s Existence
Having attacked the coherence of the God concept, the work turns to examining the arguments offered to prove God’s existence. It systematically refutes the major arguments of natural theology that were current in the eighteenth century.
The cosmological argument—that the world must have a first cause, and this cause is God—is rejected on multiple grounds. First, if everything must have a cause, then God must have a cause, and saying “God is uncaused” is simply special pleading. Second, even if we grant that the chain of causes must terminate somewhere, there is no reason this terminus must be an intelligent being rather than simply matter in motion according to natural laws. Third, the argument proves at most a first cause, not the God of Christianity with all his particular attributes.
The argument from design—that the order and apparent purpose in nature demonstrate an intelligent designer—receives extended criticism. The work argues that what appears as design is simply the result of matter arranging itself according to its inherent properties and the laws of motion. Complex structures arise through natural processes without any need for an intelligent designer. Moreover, if the order in the world requires an intelligent designer, then the order in God’s mind would require a designer of God, leading to infinite regress. The work also points to the many instances of apparent disorder, waste, and cruelty in nature as evidence against a benevolent designer.
The argument from universal consent—that all peoples believe in gods, suggesting this belief is natural and true—is dismissed by noting that universal belief does not establish truth (all peoples once believed the earth was flat), and that the vast diversity of religious beliefs across cultures suggests that religion arises from common human weaknesses rather than from genuine knowledge of a real deity.
The Natural Origins of Religion
Having argued that there is no rational basis for religious belief, the work offers an alternative account of religion’s origins in natural human psychology and social conditions. Religion arises, it argues, from ignorance, fear, and the human tendency to anthropomorphize.
Primitive humans, confronted with natural phenomena they could not understand—thunder, lightning, earthquakes, disease, death—attributed these to invisible powerful beings similar to themselves but greater. Unable to comprehend natural causation, they imagined intentional agents behind natural events. This tendency was reinforced by dreams, which seemed to show that the soul could leave the body, suggesting the possibility of disembodied spirits.
Fear played a crucial role. Humans, aware of their vulnerability and mortality, sought to propitiate the powerful beings they imagined controlled their fate. Religion thus began as a system of fear-driven superstition, an attempt to gain favor with imagined supernatural powers through sacrifice, prayer, and ritual.
The work emphasizes that religion is sustained by continued ignorance. As humans gain genuine knowledge of natural causes through observation and reason, the domain of the supernatural shrinks. Religion persists only where ignorance persists. This explains why religious belief is strongest among the uneducated and why priests have historically opposed the spread of knowledge.
The Role of Priests and Political Power
A major theme throughout the work is the political function of religion as an instrument of oppression. The work argues that priests, having established themselves as intermediaries between humans and the gods, have a vested interest in maintaining religious belief and popular ignorance. They claim special knowledge of divine will and special powers to intercede with the deity, giving them power over the faithful.
Priests have allied themselves with political rulers in a mutually beneficial arrangement. Rulers use religion to sanctify their authority, claiming divine right and teaching the people that obedience to earthly authority is commanded by God. In return, priests receive wealth, privilege, and protection from the state. Together, priests and kings keep the common people in subjection through a combination of religious terror (threats of hell and divine punishment) and political force.
The work presents Christianity in particular as a system designed to produce docile subjects. It teaches people to accept suffering in this life with promises of reward in the next. It condemns pride and encourages humility, discouraging people from asserting their rights or challenging authority. It presents poverty as virtuous and wealth as dangerous to salvation, reconciling the poor to their condition. It teaches that all authority comes from God and that resistance to rulers is resistance to God himself.
This political analysis extends to specific Christian doctrines. The doctrine of original sin teaches that humans are inherently corrupt and deserving of punishment, undermining any sense of natural human dignity or rights. The doctrine of grace teaches that salvation depends entirely on God’s arbitrary will, not on human merit or effort, encouraging passivity. The emphasis on faith over reason discourages critical thinking that might lead people to question religious and political authority.
The Immorality of Christian Morality
The work launches a sustained attack on Christian morality, arguing that it is not only not superior to natural morality but is actually inferior and often positively harmful. Christian morality, it argues, is arbitrary, based on the supposed commands of God rather than on human needs and social utility. What is called good is simply what God commands; what is called evil is simply what God forbids. There is no rational basis for these commands.
Moreover, the God of Christianity commands and approves many things that are clearly immoral by any reasonable standard. The Old Testament shows God commanding genocide, approving slavery, and demanding cruel punishments for trivial offenses. God himself is presented as jealous, vengeful, and cruel, drowning nearly all humanity in the flood, destroying cities, and consigning the vast majority of humans to eternal torment for finite sins or even for mere unbelief.
Christian sexual morality comes in for particular criticism. The work argues that the Christian condemnation of natural sexual desires and the elevation of celibacy as superior to marriage are contrary to nature and productive of misery and hypocrisy. Priests who take vows of celibacy either violate them in secret or suffer psychological damage from suppressing natural drives. The doctrine that sexual pleasure is sinful even within marriage poisons the relationship between husband and wife.
The work contrasts this arbitrary and harmful religious morality with natural morality based on human nature and social needs. True morality, it argues, is based on the recognition that humans are social beings who depend on cooperation for survival and flourishing. Actions are good insofar as they promote human welfare and social harmony; actions are evil insofar as they cause harm. This provides a rational and universal basis for morality, unlike the arbitrary commands attributed to God.
Natural morality also recognizes that humans have a right to pursue happiness in this life, the only life we have. Religious morality, by contrast, teaches people to despise earthly happiness and focus on an imaginary afterlife, leading them to waste their actual lives in pursuit of a fantasy.
The Absurdities of Christian Doctrine
Beyond its general arguments against religion, the work catalogs specific Christian doctrines and presents them as absurd, contradictory, or morally repugnant. The doctrine of the Trinity—that God is simultaneously one being and three persons—is presented as a logical impossibility, a contradiction in terms that theologians have wrapped in mystery to disguise its incoherence.
The doctrine of the Incarnation—that God became man in Jesus Christ—is similarly attacked. How can an infinite, immaterial, unchanging being become a finite, material, changing human? How can God die? The work presents the story of Jesus as a collection of absurdities: God impregnates a virgin to produce himself, lives as a human, allows himself to be tortured and killed to satisfy his own sense of justice, then resurrects himself. The whole narrative is presented as incoherent.
The doctrine of the Atonement receives extended criticism. Why would a just God require the torture and death of an innocent person (indeed, of himself) to forgive the sins of others? How does the suffering of one person cancel the guilt of others? The work argues that this doctrine makes God appear both unjust (punishing the innocent) and irrational (requiring a bizarre blood sacrifice to satisfy his own anger).
The doctrine of eternal damnation is presented as the clearest evidence of Christianity’s moral bankruptcy. The work argues that infinite punishment for finite sins is infinitely unjust. Moreover, punishing people for unbelief—for failing to believe doctrines that are inherently incredible and unsupported by evidence—is monstrously cruel. A God who would create beings knowing that most of them would end up in eternal torment is not good but evil.
The work also attacks Christian eschatology—the doctrines of the end times, resurrection of the body, and final judgment. The idea that physical bodies will be reconstituted and reunited with souls is presented as absurd. What happens to bodies that have been eaten by animals or other humans? What age will resurrected bodies be? The whole scheme is presented as a fantasy with no basis in reason or nature.
Miracles and Revelation
The work addresses the Christian claim that the truth of Christianity is demonstrated by miracles and divine revelation. It argues that miracles are impossible because they would require violations of natural law, and natural laws are simply descriptions of how matter necessarily behaves given its inherent properties. A miracle would require matter to act contrary to its nature, which is a contradiction.
Reports of miracles, the work argues, are always based on testimony, and testimony is notoriously unreliable, especially regarding extraordinary events. People are credulous, prone to exaggeration, and often motivated to lie. Reports of miracles are always from the distant past or from ignorant people; miracles never occur under conditions where they can be properly investigated. The work suggests that alleged miracles are either natural events misunderstood, deliberate frauds, or simply legends that grew in the telling.
The claim that the Bible is divinely revealed is rejected on multiple grounds. First, the Bible contains numerous contradictions, errors, and absurdities, which would not be present in a text authored by an omniscient God. Second, the Bible contains nothing that could not have been written by humans of the time and place it was written; it contains no knowledge that would demonstrate divine authorship. Third, the moral teachings of the Bible are often inferior to what reason alone can discover, and sometimes positively immoral.
The work also questions why God would choose revelation as a method of communicating truth. Revelation is inherently unreliable—it depends on testimony and interpretation, leading to endless disputes about what God actually said. If God wanted humans to know certain truths, he could have made them self-evident to reason, as mathematical truths are. The fact that religious truths must be taken on faith rather than demonstrated to reason suggests they are not truths at all.
The Harm Done by Religion
Having argued that religion is false, the work goes on to argue that it is also harmful. Religion, it contends, has been responsible for immense suffering throughout history. Religious wars have killed millions. Religious persecution has tortured and murdered countless individuals for the crime of believing differently. The Crusades, the Inquisition, the wars of religion following the Reformation—all are presented as evidence of religion’s destructive power.
Beyond direct violence, religion harms humanity in more subtle ways. It discourages the pursuit of knowledge by teaching that faith is superior to reason and that questioning religious doctrine is sinful. It has opposed scientific inquiry whenever it threatened religious dogma. It keeps people in ignorance, which keeps them in subjection.
Religion also causes psychological harm. The doctrine of hell terrorizes believers, especially children, with the threat of eternal torment. The doctrine of sin creates guilt over natural desires and actions. The emphasis on the afterlife causes people to devalue their actual lives and miss opportunities for earthly happiness. The work presents religion as a system that makes people miserable in the name of a non-existent God and an imaginary afterlife.
The work argues that religion is particularly harmful to morality, despite its claims to be the foundation of morality. By basing morality on divine command rather than on reason and human welfare, religion makes morality arbitrary and disconnects it from human needs. By teaching that faith and ritual observance are more important than moral behavior, religion allows people to commit terrible acts while considering themselves righteous. By offering forgiveness for sins through confession and absolution, religion removes the natural consequences that would otherwise deter immoral behavior.
The Vision of a World Without Religion
Having demolished religion, the work sketches a positive vision of human life and society freed from religious superstition. In a world without religion, morality would be based on reason and human nature. People would recognize that cooperation and mutual aid are necessary for human flourishing, and would develop moral rules accordingly. Without the fear of hell or hope of heaven, people would focus on creating happiness in this life, the only life we have.
Education would be based on reason and observation rather than on religious dogma. Science would be free to investigate nature without fear of contradicting scripture. People would be free to think for themselves rather than accepting the pronouncements of priests. Political authority would be based on consent and the common good rather than on divine right.
The work acknowledges that eliminating religion would not create a perfect world—humans would still have conflicts and would still sometimes act badly. But it argues that removing religion would remove one major source of conflict and oppression. People would no longer kill each other over theological disputes. Rulers could no longer use religion to sanctify tyranny. Priests would no longer be able to exploit popular credulity for their own benefit.
The work expresses optimism that reason and education can eventually free humanity from religious superstition. As knowledge spreads and people learn to think critically, they will recognize the absurdity of religious claims. The work sees itself as contributing to this process of enlightenment, helping to free minds from the chains of superstition.
The Author and Historical Context
Jean Meslier was a Catholic priest in the rural village of Étrépigny in Champagne. He served as parish priest there for decades, apparently performing his duties adequately while secretly harboring radical atheistic views. Only after his death in 1729 was his manuscript discovered, revealing the extraordinary contradiction between his public role and his private convictions.
Meslier’s manuscript was a lengthy, repetitive work that circulated in various forms in the eighteenth century. Voltaire published an extract that emphasized Meslier’s deism and anti-clericalism while downplaying his atheism and materialism. D’Holbach’s version, published in the 1760s, was more radical, presenting Meslier’s full atheistic argument.
Baron d’Holbach was a wealthy German-born nobleman who lived in Paris and was a central figure in the radical wing of the French Enlightenment. His salon was a meeting place for philosophes including Diderot, d’Alembert, and other contributors to the Encyclopédie. D’Holbach himself wrote or edited numerous anti-religious works, published anonymously or under pseudonyms to avoid prosecution.
D’Holbach’s editorial work on Meslier’s manuscript fit into his broader project of combating religion through rational argument. His other works included “System of Nature,” a comprehensive statement of materialist philosophy, and “Christianity Unveiled,” another attack on Christian doctrine. D’Holbach was one of the few openly atheistic thinkers of the eighteenth century; most Enlightenment figures were deists who believed in God but rejected revealed religion.
Reception and Influence
“Superstition in All Ages” was part of a broader current of anti-religious thought in the French Enlightenment, but it was more radical than most. While many Enlightenment thinkers criticized the Catholic Church and advocated religious toleration, few went as far as advocating atheism. The work had to be published clandestinely and circulated secretly to avoid prosecution for blasphemy.
The work’s influence is difficult to trace precisely because it circulated anonymously and because its arguments were similar to those in other clandestine anti-religious works of the period. It contributed to the broader erosion of religious authority in educated circles in the late eighteenth century. The French Revolution’s attacks on the Catholic Church and attempts to establish a secular state were influenced by the kind of anti-religious arguments found in works like this.
The work represents an important moment in the history of atheism. While there had been atheistic thinkers before, they were rare and usually kept their views private. The eighteenth century saw the emergence of more open atheistic argument, and works like “Superstition in All Ages” were part of this development. The work’s systematic demolition of Christian theology and its naturalistic account of religion’s origins anticipated later atheistic arguments.
The work also represents an important development in the critique of religion’s political function. While earlier critics had attacked religious hypocrisy or specific abuses, this work presented religion itself as fundamentally a tool of oppression, an argument that would be developed further by later thinkers including Marx.
The work remains significant as one of the most comprehensive and uncompromising atheistic critiques of Christianity produced in the Enlightenment. Its arguments—that religious concepts are incoherent, that arguments for God’s existence fail, that religion arises from ignorance and fear, that religion serves political oppression, and that religious morality is inferior to natural morality—have remained central to atheistic thought. While the work’s rhetoric may seem extreme to modern readers, its core arguments continue to be debated in philosophy of religion.
