That Sartre's study of Flaubert, The Family Idiot, is a towering achievement in intellectual history has never been disputed. Yet critics have argued about the precise nature of this novel, or biography, or "criticism-fiction" which is the summation of Sartre's philosophical, social, and literary thought. Sartre writes, simply, in the preface to the book: "The Family Idiot is the sequel to The Question of Method. The subject:...