Kant and the Problem of Metaphysics Kant and the Problem of Metaphysics Kant and the Problem of Metaphysics () is a 1929 book about Immanuel Kant by the German philosopher Martin Heidegger. It is often referred by Heidegger to simply as the "Kantbuch" ("Kantbook"). This book published as volume 3 of the "Gesamtausgabe". The book is dedicated to the memory of Max Scheler. During the 1920s Heidegger read Immanuel Kant extensively. The Kantian influence is pervasive throughout Heidegger's most celebrated and influential book, "Being and Time" (1927). The Kantbook can be seen as a supplement for the unfinished second part of "Being and Time". Additionally, during
Being and Time of what a hammer "is" is not determined by a theoretical understanding of its presence, but by the fact that it is something we need at the moment we wish to do hammering. Only a "later" understanding might come to contemplate a hammer "as" an object. The total understanding of being results from an explication of the implicit knowledge of being that inheres in "Dasein". Philosophy thus becomes a form of interpretation, but since there is no external reference point outside being from which to begin this interpretation, the question becomes to know in which way to proceed with this