Marketing the Third Reich: Persuasion, Packaging and Propaganda by Nicholas O’Shaughnessy
[PDF file]: […] disdain, as Hitler made clear in Mein Kampf: ‘We must avoid excessive intellectual demands on our public. The receptivity of the great masses is very limited, their intelligence is small, but their power of forgetting is enormous. In consequence of these facts all effective propaganda must be limited to a very few points and […]