“[Adorno’s] Negative Dialectics begins, in a way, with a long discussion of Heidegger’s ontology because the latter presents itself as another proposal for going beyond Enlightenment rationalism, which Heidegger regarded as no more than a moment in the history of metaphysics. But it actually falls short of doing so, in Adorno’s opinion, which is why he won’t hesitate to claim (much to Lacoue-Labarthe’s chagrin) that Heidegger was a fascist through and through. So Heidegger’s ontology, a rival of his own, is ultimately discredited by Adorno because it fails to go beyond Enlightenment rationalism – unlike negative dialectics, which will combine Kant’s critique and Hegel’s dialectics and transcend them in a new way.” [Five Lessons on Wagner, 30]