Kant, Hegel, and Marx, as well as Nietzsche, Adorno, Fichte, Schelling, and the unavoidable problem of Heidegger and Nazism. The dialogue is contentious, friendly, and often quotable, with strong--at times passionate--positions taken by both Badiou and Nancy, who find themselves disagreeing over Kant, for example, and in unexpected agreement on Marx, for another. What does it mean, then, to conduct a dialogue on German philosophy from a French perspective? As volume editor Jan Völker observes, "German philosophy" and "French philosophy" describe complex constellations that, despite the reference to nation-states and languages, above all encompass shared concepts and problems--although these take a range of forms. Perhaps they can reveal their essential import only in translation.