"Difficult to know and impossible to forget, Ludwig Wittgenstein is remembered as the greatest philosopher of the twentieth century. He published only one book in his lifetime -- a masterpiece that moulded the evolution of philosophy and baffled his teachers. Spanning most of his life, from his early encounters with Bertrand Russell in Cambridge to a final trip to New York via the Russian Front, Wittgenstein: The Crooked Roads tracks the journeys of a tortured soul."--Page [4] of cover.