“The victory of socialism in one country, notwithstanding the fact that it seriously weakens world imperialism, does not and cannot create the conditions necessary for merging of the nations and the national languages of the world into one integral whole.
The period of the victory of socialism on a world scale differs from the period of the victory of socialism in one country primarily in the fact that it will abolish imperialism in all countries, will abolish both the striving to subjugate other nations and the fear inspired by the menace of national enslavement, will radically undermine national distrust and national enmity, will unite the nations into one world socialist economic system, and will thus create the real conditions necessary for the gradual merging of all nations into one. . . .
From these passages it is evident that Lenin does not assign the process of the dying away of national differences and the merging of nations to the period of the victory of socialism in one country, but exclusively to the period after the establishment of the dictatorship of the proletariat on a world scale, that is, to the period of the victory of socialism in all countries, when the foundations of a world socialist economy have already been laid.
From these passages it is evident, further, that the attempt to assign the process of the dying away of national differences to the period of the victory of socialism in one country, in our country, is qualified by Lenin as a ‘foolish dream.'”
— J. Stalin, March 18, 1929, “The National Question and Leninism: Reply to Comrades Meshkov, Kovalchuk, and Others” Works Vol. 11 (Moscow: Foreign Languages Publishing House, 1954)