When Gilles Deleuze noted in the 1980s that Foucault was ultimately a "Kantian," it seemed like a deliberately exaggerated statement intended to highlight a lesser-known aspect of the author. Subsequently, it became increasingly clear how significant Kant's critical philosophy is to Foucault's entire philosophical project. His last lecture series at the Collège de France begins with an in-depth reading of "What is Enlightenment?"; thus, a circle is closed that began in the late 1950s with the translation of Kant's Anthropology from a Pragmatic Point of View. The detailed introduction that Foucault provided for his translation had long been accessible only in the archives and known to a small number of specialists. Now, the text is finally available in a carefully edited version. It shows that Foucault.