I HAVE been told frequently, and always with great surprise, that there is something common and distinctive in all my writings, from the Birth of Tragedy to the latest published Prelude to a Philosophy of the Future. They all contain, I have been told, snares and nets for unwary birds, and an almost perpetual unconscious demand for the inversion of customary valuations and valued customs. What? Everything only —human—all-too-human? People lay down my writings with this sigh, not without a certain dread and distrust of morality itself, indeed almost tempted and encouraged to become advocates of the worst things: as being perhaps only the best disparaged? My writings have been called a school of suspicion and especially of disdain, more happily, also, a school of courage and even of audacity.