“Communists have always viewed the national question through the prism of the class struggle, believing that its solution has to be subordinated to the interests of the Revolution, to the interests of socialism. That is why Communists and all fighters for socialism believe that the main aspect of the national question is unification of the working people, regardless of their national origin, in the common struggle against every type of oppression, and for a new social system which rules out exploitation of the working people.”
Cited in Nations and Internationalism http://leninist.biz/en/1979/NI302/0-Introduction.005
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Leonid Brezhnev 32
General Secretary of the Communist Party of the Soviet Union 1906–1982Related quotes

Speech by Adolf Hitler, On National Socialism and World Relations http://research.calvin.edu/german-propaganda-archive/hitler1.htm, delivered in the German Reichstag, January 30, 1937. German translation published by H. Müller & Sohn in Berlin.
1930s
Context: And numerous people whose families belong to the peasantry and working classes are now filling prominent positions in this National Socialist State. Some of them actually hold the highest offices in the leadership of the nation, as Cabinet Ministers, Reichsstatthalter and Gauleiter. But National Socialism always bears in mind the interests of the people as a whole and not the interests of one class or another. The National Socialist Revolution has not aimed at turning a privileged class into a class which will have no rights in the future. Its aim has been to grant equal rights to those social strata that hitherto were denied such rights.

"Right of Nations to Self-Determination", (1904), The Lenin Anthology
1910s

Source: The German State on a National and Socialist Foundation (1923), p. 71

Source: The German State on a National and Socialist Foundation (1923), p. 113

(1847)

Cited in Fundamentals of Political Science http://leninist.biz/en/1975/FPS559/3.1-The.Dawn.of.a.New.Era-

Concerning the National Question and Social Patriotism http://www.marxists.org/archive/tito/1948/11/26.htm Speech held at the Slovene Academy of Arts and Sciences, November 26, 1948, Ljubljana
Speeches

Address to the Party Central Committee (14 May 1918); Collected Works, Vol. 27, pp. 365-381.
1910s