Nietzsche's ConscienceAaron Ridley explores Nietzsche's mature ethical thought as expressed in his masterpiece On the Genealogy of Morals. Taking seriously the use that Nietzsche makes of human types, Ridley arranges his book thematically around the six characters who loom largest in that workthe slave, the priest, the philosopher, the artist, the scientist, and the noble. By elucidating what the Genealogy says about these figures, he achieves a persuasive new assessment