Yea I don’t know about that exact quote, but he did say similar things. For example: “I'll say this; the Third Army alone with very little help and with damned few casualties, could lick what is left of the Russians in six weeks. You mark my words. Don't ever forget them... Someday we will have to fight them and it will take six years and cost us six million lives.” “Berlin gave me the blues. We have destroyed what could have been a good race and we about to replace them with Mongolian savages. And all Europe will be communist.” “The stuff in the papers about fraternization is all wet... All that sort of writing is done by Jews to get revenge. Actually the Germans are the only decent people left in Europe. It’s a choice between them and the Russians. I prefer the Germans.” “I am frankly opposed to this war criminal stuff. It is not cricket and is Semitic. ” All from The Patton Papers, 1940–1945. Edit: He also mentioned that he was not aware we were fighting to de-natzify Germany, and how he regretted doing so.