“People sometimes forget about their national tasks; but such peoples perish, they turn into land, into fertilizer, on which other, stronger nations grow and grow stronger.”

The Uttarpara Address (1909)
Context: This is the word that has been put into my mouth to speak to you today. What I intended to speak has been put away from me, and beyond what is given to me I have nothing to say. It is only the word that is put into me that I can speak to you. That word is now finished. I spoke once before with this force in me and I said then that this movement is not a political movement and that nationalism is not politics but a religion, a creed, a faith. I say it again today, but I put it in another way. I say no longer that nationalism is a creed, a religion, a faith; I say that it is the Sanatan Dharma which for us is nationalism. This Hindu nation was born with the Sanatan Dharma, with it it moves and with it it grows. When the Sanatan Dharma declines, then the nation declines, and if the Sanatan Dharma were capable of perishing, with the Sanatan Dharma it would perish.

Letter from Lenin to Gorky https://www.loc.gov/exhibits/archives/g2aleks.html, Sept. 15, 1919
1910s
Source: The Letters Of Lenin

On Development (1964)

Quote (1899), # 93, in The Diaries of Paul Klee, translation: Pierre B. Schneider, R. Y. Zachary and Max Knight; publisher, University of California Press, 1964
1895 - 1902

The Rise and Fall of the Third Reich (1960)

To Albert Speer (1945), as quoted in "Defeat of Hitler: Enter the Bunker" http://www.historyplace.com/worldwar2/defeat/enter-bunker.htm (2010), The History Place
1940s

2005

Speech at Celebration Meeting of the Moscow Soviet of Working People’s Deputies and Moscow Party and Public Organizations https://www.marxists.org/reference/archive/stalin/works/1944/11/06.htm (6 November 1944)
Stalin's speeches, writings and authorised interviews

2000s, 2008, Address to the United Nations General Assembly (September 2008)