Hear this one a lot, but rarely see the full citation:

Those that control the past control the future and those who control the present control the past.

George Orwell, Nineteen Eighty-Four (1949; New York: Signet, 1950), 32.

Putting it next to this quote: It is one of the less visible ironies of the democratic system that the academy’s freedom of expression rests securely on its being ignored.

from Marilyn Young, Dangerous History: Vietnam and the “Good War”, Edward Linenthal and Tom Engelhardt, History Wars (NY: Henry Holt, 1996), 206.