One of the most striking and pathetic figures of the nineteenth century was Friedrich Nietzsche. A radical aristocrat, a radical enemy of religion, a prophet, he shared the fate of the prophet and the radical man. He was a poet rather than a philosopher, not one calmly to weigh the issues of his mind. He was a zealot with a mission, a fiery genius, whose torch, unsteady at times, flared into madness in his latter years. So great was the strain of thought that his mind was literally consumed by his zeal for a vast, a revolutionary cause.