More than a century after his death in 1900, Nietzsche remains a seminal figure in the history of European intellectual life. Celebrated as a liberator by some, maligned as a pernicious influence by others, he was the subject of controversy during his lifetime, pursuing a hedonistic individualism and espousing concepts such as the Superman and the Will to Power until he died after a decade of institutionalized insanity. In this groundbreaking...