books.google.com - Heidegger's lecture course at the University of Marburg in the summer of 1925, an early version of Being and Time (1927), offers a unique glimpse into the motivations that prompted the writing of this great philosopher's master work and the presuppositions that gave shape to it. The book embarks upon...http://books.google.com/books/about/History_of_the_Concept_of_Time.html?id=ZMGwuhOqzXAC&utm_source=gb-gplus-shareHistory of the Concept of Time