Doublethink
Doublethink is the act of simultaneously accepting two mutually contradictory beliefs as correct, often in distinct social contexts. Doublethink is related to, but differs from, hypocrisy and Neutrality. Also related is cognitive dissonance, in which contradictory beliefs cause conflict in one's mind. Doublethink is notable due to a lack of cognitive dissonance — thus the person is completely unaware of any conflict or contradiction.
George Orwell created the word doublethink in his dystopian novel Nineteen Eighty-Four (published in 1948); doublethink is part of newspeak. In the novel, its origin within the typical citizen is unclear; while it could be partly a product of Big Brother's formal brainwashing programmes, the novel explicitly shows people learning doublethink and newspeak due to peer pressure and a desire to "fit in", or gain status within the Party — to be seen as a loyal Party Member. In the novel, for someone to even recognize — let alone mention — any contradiction within the context of the Party line was akin to blasphemy, and could subject that someone to disciplinary action and to the instant social disapproval of fellow Party Members.
According to Nineteen Eighty-Four by George Orwell, doublethink is:
“ The power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them... To tell deliberate lies while genuinely believing in them, to forget any fact that has become inconvenient, and then, when it becomes necessary again, to draw it back from oblivion for just as long as it is needed, to deny the existence of objective reality and all the while to take account of the reality which one denies – all this is indispensably necessary. Even in using the word doublethink it is necessary to exercise doublethink. For by using the word one admits that one is tampering with reality; by a fresh act of doublethink one erases this knowledge; and so on indefinitely, with the lie always one leap ahead of the truth.[1]