The period after World War Two saw the emergence both of the so-called later Heidegger and of the corresponding problem of the unity of his thought. Although his major work, Sein und Zeit,1927, (= SZ) had announced Heidegger's intention of working out the meaning of being (Sein), his publications up through 1943, with the exception of the brief Vom Wesen der Wahrheit, presented only his preparatory analysis of human being (Dasein). However, Heidegger's post-war publications emphasized being itself (the history of being, being as language, pre-Socratic notions of being, the withdrawal of being in the modern world) and indeed almost seemed to hypostasize being into an "other" with a life of its own. This state of affairs, combined with Heidegger's announcement in 1953 that SZ would be left a torso, gave rise to such questions as whether his later thought was still phenomenological, how it might be continuous with his earlier writings, and how, if indeed at all, it was to be understood.