In “Mein Kampf,” Hitler argued that effective propaganda appeals “to the feelings of the public rather than to their reasoning ability”; relies on “stereotyped formulas,” repeated over and over again, to drum ideas into the minds of the masses; and uses simple “love or hate, right or wrong” formulations to assail the enemy while making “intentionally biased and one-sided” arguments.

http://mobile.nytimes.com/2016/12/26/books/how-propaganda-works-is-a-timely-reminder-for-a-post-truth-age.html