* But the most brilliant propagandist technique will yield no success unless one fundamental principle is borne in mind constantly and with unflagging attention. It must confine itself to a few points and repeat them over and over. Here, as so often in this world, persistence is the first and most important requirement for success.
o Actually from "War Propaganda", in volume 1, chapter 6 of Mein Kampf (1925), by Adolf Hitler
* (multiple alternatives) If you repeat a lie often enough, it becomes the truth. // If you tell a lie big enough and keep repeating it, people will eventually come to believe it. // If you repeat a lie often enough, people will believe it. // If you repeat a lie long enough, it becomes truth. // If you repeat a lie many times, people are bound to start believing it.
o no reliable source; probably misquotations of the Big Lie idea
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