A mixture of gullibility and cynicism had been an outstanding
characteristic of mob mentality before it became an everyday
phenomenon of masses.
In an ever-changing, incomprehensible world the masses had reached the
point where they would, at the same time, believe everything and
nothing, think that everything was possible and that nothing was true.
The mixture in itself was remarkable enough, because it spelled the
end of the illusion that gullibility was a weakness of unsuspecting
primitive souls and cynicism the vice of superior and refined minds.
Mass propaganda discovered that its audience was ready at all times to
believe the worst, no matter how absurd, and did not particularly
object to being deceived because it held every statement to be a lie
anyhow.
The totalitarian mass leaders based their propaganda on the correct
psychological assumption that, under such conditions, one could make
people believe the most fantastic statements one day, and trust that
if the next day they were given irrefutable proof of their falsehood,
they would take refuge in cynicism; instead of deserting the leaders
who had lied to them, they would protest that they had known all along
that the statement was a lie and would admire the leaders for their
superior tactical cleverness.
-- Hannah Arendt. Origins of Totalitarianism, (1951).
Cleveland, Ohio: The World Publishing Company
"First Meridian printing" (September 1958). p382