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Voltaire
François-Marie Arouet
The Enlightenment's fiercest wit — tolerance, free speech, and 'crush the infamous'.
Overview
The most famous writer of the French Enlightenment, Voltaire wielded satire, history, and philosophy against religious intolerance, censorship, and abuse of power. A deist who admired English liberty and Newtonian science, he championed freedom of speech and religion and the separation of church and state, campaigning against judicial and clerical cruelty (as in the Calas affair). In Candide he mercilessly satirized Leibniz's 'best of all possible worlds'. His rallying cry, 'Écrasez l'infâme' ('crush the infamous'), targeted fanaticism and superstition. Prolific beyond measure, he became the very emblem of the Enlightenment.
What they supported — and why
Religious tolerance and free thought
SupportedThe state and society must tolerate differing beliefs; fanaticism and persecution are the great evils.
WhyCertainty enforced by power breeds cruelty and injustice (as the Calas case showed), so liberty of conscience and speech is essential to a humane society.
Deism and the critique of the Church
SupportedReason points to a creator, but organized religion's dogmas, miracles, and clerical power are superstition to be resisted.
WhyA rational, moral religion needs no priestly authority or irrational dogma, which serve power rather than truth — hence 'crush the infamous'.
Against facile optimism (Candide)
SupportedThe claim that this is 'the best of all possible worlds' is mocked by real suffering; better to 'cultivate our garden'.
WhyEarthquakes, war, and cruelty make Leibnizian optimism absurd; wisdom lies in honest, practical work to improve life rather than metaphysical complacency.
Causes championed
- Religious tolerance
- Freedom of speech and the press
- Justice against cruelty and superstition
- Enlightenment reform
Issues wrestled with
- How should society treat differing beliefs?
- What is the place of reason and religion?
- Is the world as good as it could be?
Hurdles faced
- Imprisoned in the Bastille and exiled for his writings
- Constant censorship; many works published anonymously or abroad
Works & books
3 catalogued. Status shows how much survives to today.
Candide
SurvivesHis satirical masterpiece skewering optimism and human folly.
Treatise on Tolerance; Letters on the English
SurvivesA defense of religious tolerance and an admiring account of English liberty and science.
Philosophical Dictionary
SurvivesPointed articles critiquing dogma and championing reason.
Read the texts free
22 of Voltaire’s works are free to read in full — public-domain English editions on Project Gutenberg, matched from Gutenberg’s own catalogue.
Every edition online — Open Library catalogues 4,139 works & editions, 388 of them free to read in full.
The influence network
See Voltaire in the map →Influenced by
Influenced
In their words
“We must cultivate our garden.”
— Candide
Legacy
The emblem of the Enlightenment, his campaigns for tolerance, free speech, and reason against fanaticism helped shape modern liberal and secular values.
Further reading
Cross-checked against these authoritative references.