Whether Nietzsche or Heidegger, the development of the major French theories in the 20th century would be hardly imaginable without the influence of the classics of German philosophy. But what constitutes German thought, and what questions continue to give it relevance? At the initiative of Jan Völker, the two most important contemporary French philosophers, Alain Badiou and Jean-Luc Nancy, meet for the first time for a joint intellectual exchange: In their focused yet thought-provoking dialogue, the two philosophers examine the German tradition of thought through the lens of Kant, Hegel, Heidegger, and Adorno, comparing their views on various theoretical concepts. This not only sparks a controversial debate about the relevance, significance, and viability of German thinkers but also provides an accessible and original introduction.