Friedrich Nietzsche's On the Genealogy of Morality is a sustained feat of incisive interpretation. Well known as one of Nietzsche's greatest works, and as one of the most important books of nineteenth-century philosophy, On the Genealogy of Morality also provided the inspiration for the methodologies of several key philosophers of the modern age. Michel Foucault and Judith Butler, among others, cite Nietzsche as an influence specifically because...