"I can't see how you could possibly apply this concept to this situation?
"That's what I am trying to explain to you; the only way I could live was by compartmentalizing my thinking. By doing this I could apply it to my own situation; if the 'subject' was the government, the 'object' the Jews, and the 'action' the gassings, then I could tell myself that for me the fourth element, 'intent' [he called it 'free will'] was missing." [...]
"What if you had been specifically assigned to carry out the actual gassings?"
"I wasn't," he said drily, and added in a reasonable and explanatory tone: "That was done by two Russians - Ivan and Nicolau, under the command of a sub [Gustav Muenzberger]."
- from Gitta Sereny's Into That Darkness: excerpt of her interview of Franz Stangl, Commandant of Treblinka - the largest of the five Nazi extermination camps.
Note: Alan Dershowitz

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"And those who were seen dancing were thought to be insane by those who could not hear the music." Friedrich Nietzsche