"He came to my house once, and I put a bottle of cognac in front of him, and he finished it in one sitting. When his eyes were flickering — he wasn't drunk — I said this is the time to ask him the question "why"? His answer was "I was a Nazi, and I believed that the Germans were doing wrong … when they started killing innocent people — and it didn't mean anything to me that they were Jewish, to me they were just human beings, menschen — I decided I am going to work against them and I am going to save as many as I can." And I think that Oscar told the truth, because that's the way he worked."
January 1, 1970
https://en.wikiquote.org/wiki/Oskar_Schindler