Out of the experiences of the Kehre and its aftermath emerged the secondary masterworks: Gentile's Genesis and Structure of Society, Lukács' The Destruction of Reason, Heidegger's Nietzsche (Vols. I–IV) and Wittgenstein's Philosophical Investigations (together with various other volumes of Nachlass). All of them show the scars of the painful operations of their grafting onto and subsequent, unsuccessful attempts at partial detachment from totalitarianism. The symptoms of mingled hope and despair, aspiration and despondency are evident in them.