"Can and must! The proclamation of this new conception of [Joseph Stalin] is closed by the same words, "Such are in general the characteristic features of Lenin's conception of the proletarian revolution." In the course of a single year Stalin ascribed to [Vladimir] Lenin two directly opposed conceptions of the fundamental question of socialism. The first version represents the real tradition of the party; the second took shape in Stalin's mind only after the death of Lenin, in the course of the struggle against "Trotskyism"."