George Orwell’s 1984 was right on target...
One of Orwell’s most important messages in 1984 is that language is of central importance to human thought because it structures and limits the ideas that individuals are capable of formulating and expressing. If control of language were centralized in a political agency, Orwell proposes, such an agency could possibly alter the very structure of language to make it impossible to even conceive of disobedient or rebellious thoughts, because there would be no words with which to think them. This idea manifests itself in the language of Newspeak, which the Party has introduced to replace English. The Party is constantly refining and perfecting Newspeak, with the ultimate goal that no one will be capable of conceptualizing anything that might question the Party’s absolute power. The ever vigilant eyes of Big Brother are the Thought Police. The principles of doublethink. The best explanation of doublethink are examples provided by slogans. These are: WAR IS PEACE; SLAVERY IS FREEDOM; and IGNORANCE IS STRENGTH.