Memoirs of a Nun, which began as a joke and grew into a masterpiece, was one of the loudest salvos fired in the continuing battles between the clergy and the intelligentsia which defined so much of eighteenth-century French history. Diderot's story of a novice held in a convent against her will and forced to undergo curious spiritual and sexual trials displays all the brilliance, icy wit, and worldliness of the Enlightenment at its best.

Denis Diderot was born at Langres in eastern France in 1713, the son of a master cutler. He was originally destined for the Church but rebelled and persuaded his father to allow him to complete his education in Paris, where he graduated in 1732. For ten years Diderot was nominally a law student, but actually led a precarious bohemian but studious existence, eked out with tutoring, hack-writing and translating. His original writing began in 1746 with a number of scientific works setting out the materialist philosophy which he was to hold throughout his life. Along with his editorship of the Encyclopédie (1747-73), he wrote works on mathematics, medicine, the life sciences, economics, drama and painting, two plays and a novel, as well as his Salons (1759-81). His political writings were mainly composed around 1774 for Catherine II, at whose invitation he went to St. Petersburg. Diderot's astonishingly wide range of interests, together with his growing prediliction for the dialogue form, led to the production of his most famous works: D'Alembert's Dream, The Paradox of the Actor, Jacques the Fatalist and Rameau's Nephew. During the latter part of his life Diderot received a generous pension from Catherine II, in return for which he bequeathed her his library and manuscripts. He died in 1784.