" The Nazi world was an empire of total force, with no restraints. It was a world composed of masters and slaves, in which gentleness, kindness, pity, the respect for law, and a taste for freedom were no longer virtues, but inexpiable crimes. It was a world in which one could only obey by crawling, killing on orders, and denying oneself in silence if one could not howl with the wolves. It was a world where people exterminated for pleasure and the murderers were treated as heroes. It already seems far away, like a nightmare one would prefer to forget. And yet the poisoned yeast is still ready to rise. Men have not the right to forget so quickly. They have not the right. Never . . . "

― , The Gestapo: A History of Horror