The Legacy of Stoicism

When Voltaire writes about universal human brotherhood and the primacy of inner virtue over outward forms, we hear unmistakable echoes of Stoic philosophy. Thinkers such as Marcus Aurelius, Seneca, and Epictetus emphasized that all human beings belong to a single cosmic community. The Stoics believed that reason connects us, regardless of origin or religious conviction. This idea — that we are all citizens of the same world — forms the foundation of Voltaire’s call to bear with one another despite our differences.

Seneca wrote extensively in his letters about the necessity of clemency and the mastery of anger. He regarded wrath as a disease of the mind that disrupts our rational faculties. Voltaire, who knew Seneca’s work intimately, translated this classical wisdom into the language of his own era. Where the Stoics spoke of apatheia — freedom from destructive passions — Voltaire advocated for a society in which religious fervor no longer leads to persecution.

Montaigne’s Skepticism

Another crucial influence on Voltaire’s thinking about tolerance came from the sixteenth century. Michel de Montaigne, with his famous motto “Que sais-je?” (What do I know?), had elevated intellectual humility to an art form. Montaigne argued that our knowledge is limited and that certainty about metaphysical questions remains forever beyond reach. If we cannot know with certainty what the ultimate truth is, how can we justify persecuting others for thinking differently?

This skeptical starting point permeates Voltaire’s prayer. He addresses a God who understands human weakness and recognizes that we stumble in our attempts to grasp the divine. The question Montaigne posed becomes, in Voltaire’s hands, a prayer: if we know so little, let us at least not hate one another over that little.

Deism and Natural Religion

Voltaire was a committed Deist. He believed in a Creator God who had fashioned the world and then allowed the laws of nature to run their course. This view differed radically from orthodox Christianity with its miracles, revelations, and ecclesiastical hierarchy. The Deism that emerged in the seventeenth and eighteenth centuries drew inspiration from thinkers like John Locke and Isaac Newton. Locke had already argued for the separation of church and state in his Letter Concerning Toleration, while Newton saw the order of the universe as evidence of a rational Creator.

Tolerance is not the surrender of conviction, but the recognition that others, too, seek truth with the limited means given to us all.

Voltaire’s prayer reflects this Deist vision. He speaks to a God who belongs to no single religion but who created all people equally. The rituals, dogmas, and internecine conflicts between churches are, in this view, human additions that obscure the universal moral law. The prayer calls for a return to what all religions share: the commandment to love one’s neighbor.

Pierre Bayle and the Power of Doubt

A near-contemporary who profoundly influenced Voltaire was Pierre Bayle. This French philosopher — himself a Huguenot who had fled to the Netherlands — wrote devastating critiques of religious intolerance in his Historical and Critical Dictionary. Bayle went further than most thinkers of his age by arguing that even atheists could lead morally upright lives. If religious belief offered no guarantee of virtue, why would anyone persecute those who think differently?

Bayle’s arguments reverberate throughout Voltaire’s work. The idea that coercion in matters of faith is both counterproductive and immoral — that conscience remains a personal domain where no state or church may intrude — forms the backbone of the Treatise on Tolerance. Voltaire built upon this foundation and gave it emotional power by casting it in the form of a prayer.

Renaissance Humanism and the Dignity of Man

The roots reach even further back. The Renaissance humanism of thinkers like Erasmus and Pico della Mirandola had placed human dignity and the capacity for self-determination at the center of philosophical inquiry. Erasmus, with his plea for a Christianity of the heart rather than outward display, had paved the way for a religion less dogmatic and more ethically oriented. Pico’s famous Oration on the Dignity of Man presented humanity as free to shape itself, unbound by a fixed destiny.

This humanistic tradition is clearly present in Voltaire’s trust in reason and the possibility of moral progress. His prayer is not a desperate cry, but a call to the best in human nature. It assumes that we are capable of transcending our prejudices and that civilization can indeed move forward.

The Symbolism of the Prayer and Its Masonic Connections

It is significant that Voltaire chose the form of a prayer. In Freemasonry — which was flourishing during his lifetime and with which Voltaire was personally connected — the relationship to the Supreme Being plays a central role. The prayer as a form transcends the boundaries of any specific religion. It is a universal human gesture of humility and hope. By choosing this form, Voltaire made his message accessible to everyone who believes in something greater than themselves, regardless of the name they give to that greater reality.

The symbolism extends further. Light and darkness, reason and superstition, brotherhood and division — these contrasts that occupy such a prominent place in Masonic ritual also structure Voltaire’s prayer. The movement from ignorance toward illumination, from conflict toward harmony, mirrors the symbolic journey that every Freemason undertakes. Voltaire’s plea for tolerance is, in many ways, a literary expression of the same ideals that Freemasonry enshrines in its ceremonies: that human beings of different faiths and backgrounds can meet on the level and part upon the square.

Voltaire was initiated into the Lodge of the Nine Sisters (La Loge des Neuf Sœurs) in Paris in 1778, shortly before his death. While his philosophical convictions about tolerance had been formed long before this initiation, the Masonic fraternity offered a living embodiment of the principles he had championed for decades — a space where men of different religions and stations could gather in mutual respect, united by shared moral commitments rather than divided by doctrinal differences.

Voltaire’s prayer for tolerance did not emerge from a vacuum. It stands at the confluence of centuries of philosophical thought — Stoic universalism, Montaigne’s humble skepticism, Deist rationalism, Bayle’s fierce defense of conscience, and Renaissance humanism’s faith in human dignity. These streams merged in the mind of an Enlightenment thinker who gave them unforgettable form. For Freemasons, the prayer carries additional resonance: it articulates in words what the Craft expresses through symbol and ritual — the conviction that tolerance is not weakness but wisdom, and that the truest form of worship is to treat every fellow human being with dignity and compassion. Nearly three centuries later, that message has lost none of its urgency.

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The message Voltaire’s Prayer for Tolerance: Its Philosophical Roots first published on De Vrijmetselaar.