Abstract
In a series of essays, conferences, and lectures over the period 1959–73, Michel Foucault directly engaged the writings of Nietzsche. This article demonstrates the five different modalities of Foucault's use of Nietzsche’s writings: namely, critical, epistemological, linguistic, alethurgic, and political. Each of these modalities is tied to a particular intellectual turning point in Foucault’s philosophical investigations and can be located chronologically in five important texts from that period.