In a democratic system of thought control... [it is] necessary to take
over the entire spectrum of opinion, the entire spectrum of discussion, so
that nothing can be thinkable apart from the party line, not just that it be
obeyed, but that you can't even think anything else. The state propaganda is
not expressed; it's rather implicit; it's presupposed. It provides the
framework for discussion among people who are... admitted into mainstream
discussion.
If you tell a lie big enough and keep repeating it, people will eventually
come to believe it. The lie can be maintained only for such time as the
State can shield the people from the political, economic and/or military
consequences of the lie. It thus becomes vitally important for the State to
use all of its powers to repress dissent,-for the truth is the mortal enemy
of the lie, and thus by extension, the truth is the greatest enemy of the
State.
JOSEPH GOEBBELS