I hated the brutality, the sadism, and the insanity of Nazism. I just couldn't stand by and see people destroyed. I did what I could, what I had to do, what my conscience told me I must do. That's all there is to it. Really, nothing more.
On his metamorphosis from a Nazi party member to a savior of Jews in witnessing the genocidal practices of the "Final Solution", as quoted in "Schindler : Why did he do it?" (2010) by Louis Bülow