Zadig, or The Book of Fate (Zadig ou la Destinée") is a work of philosophical fiction written by Enlightenment philosopher Voltaire. It tells the story of Zadig, a philosopher in ancient Babylonia. Voltaire does not attempt any historical accuracy, and some of the problems Zadig faces are thinly disguised references to social and political problems of his own day. Zadig presents human life as in the hands of a destiny beyond human control. It is a story of religious and metaphysical orthodoxy, both of which Voltaire challenges with his presentation of the moral revolution taking place in Zadig himself. Voltaire's use of the literary devices of contradiction and juxtaposition are shown in beautiful form in this prose. It is one of his most celebrated works after Candide. Voltaire (François-Marie Arouet) was a French Enlightenment writer, historian and philosopher famous for his wit and for his advocacy of civil liberties, including freedom of religion, freedom of expression, free trade and separation of church and state. He was a prolific writer, producing works in almost every literary form, including plays, poetry, novels, essays, and historical and scientific works. He wrote more than 20,000 letters and more than 2,000 books and pamphlets.