“There was only the choice between Communism and Hitler, and I will tell you why Hitler won. People will not give up religion, rights, freedom of personality, the opportunity to develop by individual effort - which includes private property. And the other reason for Hitler's winning is that if a whole people is treated as the Germans were, everyone will say, 'Are we worse people than others? Are we of a minor race?' Just as every single individual needs and must have self-respect, just as every family is proud of decent traditions, so every nation wants to maintain her individual manner, culture, language, and customs. It was in these respects that Communism failed. The Communists said that God was nonsense and stupidity and preached internationalism without maintaining the natural national feelings of a nation.”

Quoted in "Trial of the Major War Criminals Before the International Military Tribunal" - Page 203 - Nuremberg, Germany - 1947

Free speech in an age of identity politics (2015)

December 1941. Bodo Scheurig, Henning von Tresckow, <i>ein Preusse gegen Hitler</i>, p. 135-6.

Quoted in A. J. Sylvester's diary entry (26 November 1941), Colin Cross (ed.), Life with Lloyd George. The Diary of A. J. Sylvester 1931-45 (London: Macmillan, 1975), pp. 296-298
Later life

"The Order #55 of the National Commissar for the Defense" (23 February 1942) http://www.ibiblio.org/pha/policy/1942/420223a.html Stalin said this when the enemy had reached the gate of Moscow during World War II. He called on the people not to identify all Germans with the Nazis.
Stalin's speeches, writings and authorised interviews

1960s, Address to Cornell College (1962)

To Leon Goldensohn, March 16, 1946, from "The Nuremberg Interviews" by Leon Goldensohn, Robert Gellately - History - 2004

I Think I'll Sit This One Out (1939)
Context: It is a sensible military tactic to recognize the enemy before you shoot. The common enemy is the animality in man, and not the men here and there who are behaving like animals at the moment. Neither science nor prayer nor force will save us. What will save us is the reason that enables men, in ancient Israel and modern America, to choose between guns and butter, and to choose well. When we have produced men of reason, we shall have a world of reason, and the Hitlers will disappear. As long as we produce men of force we shall have a world of force, and the Hitlers, whoever wins the wars, will carry the day.
Society may make many demands on me, as long as it keeps me out of the cave. It may take my property. It may take my life. But when it puts me back into the cave I must say, politely but firmly, to hell with society. My ancestors were cannibals without benefit of parliaments.

As quoted in The New York Times, “Hitlerite Riot in Berlin: Beer Glasses Fly When Speaker Compares Hitler to Lenin,” November 28, 1925 (Goebbels' speech November 27, 1925)

according to Curt Riess, journalist, author, and Jewish refugee who fled Nazi Germany, Goebbels was “praising Lenin” and drawing “parallels between Bolshevists and the Nazis.