A principle familiar to propagandists is that the doctrine to be instilled in the target audience should not be articulated: that would only expose them to reflection, inquiry, and, very likely, ridicule. The proper procedure is to drill them home by constantly presupposing them, so that they become the very condition for discourse.
Noam Chomsky, Edward S. Herman (2004). “Letters from Lexington: Reflections on Propaganda”, p.41, Pluto Press