Voltaire was a French writer, philosopher, and campaigner who became the most famous voice of the European Enlightenment. His real name was François-Marie Arouet. He was born in Paris in 1694 to a middle-class family. As a young man, he wrote sharp poems and plays that mocked powerful people. Twice he was put in the Bastille prison for his words. He took the pen name 'Voltaire' around 1718. In his twenties he spent two years in exile in England. He admired the freer politics, the religious tolerance, and the science of Newton. Back in France, he spent his life writing across many forms: tragedies, histories, poems, novels, scientific essays, philosophical books, and thousands of letters. He wrote so much that his collected works fill more than 70 large volumes. He was always in trouble with the French government and the Catholic Church. To stay safe, he moved often. He spent years at the court of King Frederick the Great of Prussia, then in Switzerland, then in his own large estate at Ferney near the Swiss border. From Ferney, in his sixties and seventies, he became Europe's most famous writer. He defended people wrongly accused by the courts. He campaigned against torture, religious persecution, and superstition. He died in Paris in 1778, at the age of 83, treated like a hero by huge crowds. Eleven years later, his ideas helped fuel the French Revolution.
Voltaire matters for three reasons. First, he was the public face of the Enlightenment, the great eighteenth-century movement for reason, science, and human freedom. He did not invent its main ideas, but he made them famous across Europe. He used wit, satire, and clear prose to attack superstition, intolerance, and unjust government. Educated people from Lisbon to Saint Petersburg read him.
Second, he turned writing into a tool for justice. When poor or unpopular people were tortured and killed by the courts on weak evidence, he campaigned for them. He wrote pamphlets, letters, and books defending Jean Calas, Pierre-Paul Sirven, and others. Through public pressure, he sometimes won. This was new: a writer using fame to fight unjust verdicts. It set a model for later public intellectuals like Émile Zola.
Third, he is one of the great prose stylists of any language. His short novel Candide is still read everywhere as a model of clear, fast, savagely funny writing. His campaigns for free speech, religious tolerance, and against legal cruelty set ideas that became central to modern democracies. Many things we now take for granted, including separation of church and state, were live and dangerous ideas when Voltaire fought for them.
For a first introduction, Theo Cuffe's Penguin translation of Candide (2005) is short, lively, and well-annotated.
A Life in Pursuit of Freedom (2005) is a readable biography.
A Life (2010) is also accessible. The BBC In Our Time podcast episodes on Voltaire and on Candide are good free starting points. Penguin and Oxford World's Classics both publish good selections of his shorter works.
For deeper reading, Nicholas Cronk's edition of Candide and Other Stories (Oxford, 2008) is well introduced and annotated. The Cambridge Companion to Voltaire, edited by Nicholas Cronk (2009), is a useful collection of essays by leading scholars. Voltaire's Treatise on Tolerance and his Philosophical Dictionary (both available in good Penguin and Oxford editions) show his campaigning and philosophical work. For Émilie du Châtelet, Judith Zinsser's biography Emilie du Châtelet: Daring Genius of the Enlightenment (2007) is excellent.
Voltaire said 'I disapprove of what you say, but I will defend to the death your right to say it.'
He did not. The line was written about him by the English biographer Evelyn Beatrice Hall in her 1906 book The Friends of Voltaire. She used it as a summary of his views, not as a quotation from him. Later readers turned the summary into a direct quote, and it has stuck ever since. The line does fairly describe what Voltaire fought for. He defended the freedom to publish ideas he disagreed with, and he fought censorship throughout his life. But the famous wording is Hall's, not his. This is one of the most widely repeated misattributions in the history of quotations.
Voltaire was an atheist who hated all religion.
He was not an atheist. He was a deist, which means he believed in a creator God but rejected most of organised religion. He thought the order of nature pointed to an intelligent designer. What he attacked was church authority, miracles, religious persecution, and what he called superstition. He also famously argued that even if God did not exist, society would need to invent the idea to keep itself in order. This is a complicated, sometimes inconsistent position, but it is not atheism. Many Enlightenment figures held similar views, including Thomas Jefferson and Benjamin Franklin. Reading Voltaire as a flat anti-religious figure misses the more interesting position he actually held.
Voltaire stood for tolerance towards everyone.
He did not. He campaigned bravely for Protestants, who were being persecuted in Catholic France. He defended individuals he believed had been unjustly accused. But his writings about Jewish people are full of prejudice, repeating old stereotypes about greed, superstition, and clannishness. Some scholars argue this was mainly aimed at Judaism as a religion, others that it was real ethnic prejudice. The debate is unresolved. What is clear is that Voltaire's tolerance was not consistent. This is a serious limit on his moral achievement, and honest engagement with him includes acknowledging it. He was a champion of justice for some and a producer of prejudice against others.
Candide is a cheerful comic novel.
It is funny, but its mood is angry, not cheerful. Voltaire wrote it after the Lisbon earthquake of 1755 had killed tens of thousands of people. He was furious with thinkers who claimed everything happened for the best in this best of all possible worlds. The book exposes its hero to one disaster after another: war, rape, slavery, religious cruelty, natural catastrophe, and personal betrayal. The jokes are sharp because they are written against real human suffering. The famous final line, 'we must cultivate our garden', is not a happy ending but a tired, modest conclusion after grand theories have failed. Reading Candide as light entertainment misses why it has lasted. It is a serious moral protest, in the form of a fast and very funny short novel.
For research-level engagement, the standard scholarly edition is the ongoing Œuvres complètes de Voltaire from the Voltaire Foundation in Oxford, which has run since 1968 and is now nearly complete. René Pomeau's multi-volume Voltaire en son temps remains foundational in French. Adam Sutcliffe's Judaism and Enlightenment (2003) is essential for understanding Voltaire's antisemitism in context. The journal Studies on Voltaire and the Eighteenth Century publishes ongoing scholarship. For the Calas affair, David Bien's The Calas Affair (1960) remains the standard study in English.
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