In this thematically organized biography, Andrew S. Curran vividly describes Diderot's tormented relationship with Rousseau, his curious correspondence with Voltaire, his passionate affairs, and his often iconoclastic stands on art, theater, morality, politics, and religion. But what this book brings out most brilliantly is how the writer's personal turmoil was an essential part of his genius and his ability to flout taboos, dogma, and convention.