1001Philosophers

Voltaire 1694 – 1778

Francois-Marie Arouet, known by his pen name Voltaire, was a French Enlightenment writer, historian, and philosopher famous for his wit and his advocacy of civil liberties. He authored more than seventy works across virtually every literary form, including the satirical novella Candide and the Philosophical Dictionary. He was a fierce critic of religious dogma, absolute monarchy, and clerical authority, and a defender of freedom of speech, religious tolerance, and the separation of church and state. His correspondence comprises some twenty thousand letters, and his ideas profoundly shaped the French Revolution and modern liberal political thought. He spent much of his life in exile or near-exile due to his outspoken criticism of authority.

Key facts

Nationality
French
Era
Modern
Movements
Enlightenment

Selected quotes

  • Attributed to Voltaire:

    “If God did not exist, it would be necessary to invent him.”

  • Attributed to Voltaire:

    “It is dangerous to be right when the government is wrong.”

  • Attributed to Voltaire:

    “Common sense is not so common.”

  • Attributed to Voltaire:

    “Doubt is not a pleasant condition, but certainty is absurd.”

  • Attributed to Voltaire:

    “The best is the enemy of the good.”

Read all Voltaire quotes

Quotes that are not actually from Voltaire

These lines are widely circulated as Voltaire, but they do not appear in Voltaire's works. Each entry below identifies the actual source.

  • “I disapprove of what you say, but I will defend to the death your right to say it.”

    Actually by: Evelyn Beatrice Hall

    This line was written by Evelyn Beatrice Hall in her 1906 book The Friends of Voltaire, where she used it as a one-sentence summary of Voltaire's attitude toward freedom of speech. Hall later confirmed in correspondence that the words were her own and not a quotation. Despite this, the line continues to be cited as a direct Voltaire quotation in countless books and speeches.