In a few pages I would like to express and to justify my admiration for the exceptional book of Jeffrey Barash. His training as an his- torian, complemented by that of the philosopher, has served him richly, not only in the discovery of rare texts and of unpublished correspondence but in the reconstruction of the philosophical landscape at the beginning of the century, and then in the period between the two wars. Standing out in the foreground of this land- scape are the two mountains constituted by Sein und Zeit and Hei- degger's work following the Kehre. This reconstruction by no means...