" In Hitler’s words, the propagandist should adopt ‘a systematically one-sided attitude towards every problem that has to be dealt with’. He must never admit that he might be wrong or that people with a different point of view might be even partially right. Opponents should not be argued with; they should be attacked, shouted down, or, if they become too much of a nuisance, liquidated. "

― Aldous Huxley , Brave New World Revisited