Say the very simplest and most obvious things, say them as often as possible, and put into the saying all the screaming passion which one human voice can carry -- that was Adolf Hitler's technique. No matter whether it was true or not -- for (Hitler) meant literally his maxim that the bigger the falsehood, the easier to get it believed; people would say you wouldn't dare make up a thing like that. Imagine the worst possible about your enemies and then swear that you knew it, you had seed it, it was God's truth and you were ready to stake your life upon it -- shout this, bellow this, over and over, day after day, night after night...when ten million join in it becomes history.
Upton Sinclair, Dragon's Teeth I
deception, hitler, propaganda