““The demagogic propagandist must therefore be consistently dogmatic. All his statements are made without qualification. There are no grays in his picture of the world; everything is either diabolically black or celestially white. 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. The morally squeamish intellectual may be shocked by this kind of thing. But the masses are always convinced that “right is on the side of the active aggressor.””