pseudonym of François Marie Arouet. 1694–1778, French writer, whose outspoken belief in religious, political, and social liberty made him the embodiment of the 18th-century Enlightenment. His major works include Lettres philosophiques (1734) and the satire Candide (1759). He also wrote plays, such as Zaïre (1732), poems, and scientific studies. He suffered several periods of banishment for his radical views