Martin Heidegger was profoundly marked by his reading of Fyodor Dostoevsky's "Political Writings", which he read in the edition by Dmitry Sergeyevich Merezhkovsky and Arthur Moeller van den Bruck, the latter being the main instigator of the Conservative German Revolution. From these writings Heidegger retained the notion of homeland (Heimat) and derived a racial conception of Germanity and Russianity that found positive expression in his Black Notebooks of 1939-41, coeval with the German-Soviet Pact. But this does not mean that Heidegger favored Russia on all points. Indeed, Heidegger's successive statements on Russia show, with all the ambivalence characterizing the Hitlerian and Nazi vision of the world in this respect, that Russia remained for him an adversary whose strength he measured vis-a-vis the Germans, whom considered the only truly historical and metaphysical people.