About Journal

It is known that after the publication of Being and Time (1927), Martin Heidegger reworked and reconsidered many of the critical notes that were made about his fundamental work. To this are dedicated a large part of the master classes in Marburg that Heidegger gave between 1923 and 1928. However, already back in Freiburg, he gave the master lesson The fundamental concepts of metaphysics. World - finitude - solitude whose themes are, without a doubt, new: Heidegger refers to the relationship between philosophy and metaphysics, deepens his analysis on the affective disposition of boredom (Langeweile), states the three famous theses on stone, the animal and the human being, dialogues with the biology of his time (Roux, Driesch and Von Uexküll), distances himself from nascent philosophical anthropologies (Scheler and Plessner) and, even, according to some interpreters, provides essential keys to understand the beginning of the "Heideggerian turn” (Kehre). It is not by chance that Safranksi describes this lesson as a “secret main work” (ein heimliches Hauptwerk). The present volume of the journal Studia Heideggeriana is dedicated to this theme.