" Under the dictatorship of Big Brother, the Party understands that by changing language—Newspeak is the Party’s word for the jargon it imposes on society—it controls the categories in which people think. “Freedom” is slavery, “truth” is falsehood, and so forth. Doublethink—“holding two contradictory beliefs in one’s mind simultaneously, and accepting both of them”—is how people learn to submit their minds to the Party’s ideology. If the Party says 2 + 2 = 5, then 2 + 2 = 5. The goal is to convince the person that all truth exists within the mind, and the rightly ordered mind believes whatever the Party says is true. "
― Rod Dreher , Live Not by Lies: A Manual for Christian Dissidents