One of these days, thought Winston with sudden deep conviction, Syme will be vaporized. He is too intelligent. He sees too clearly and speaks too plainly. The Party does not like such people. One day he will disappear. It is written in his face.

The two aims of the Party are to conquer the whole surface of the earth and to extinguish once and for all the possiblity of independent thought. There are therefore two great problems which the Party is concerned to solve. One is how to discover against his will what another human being is thinking and the other is how to kill several hundred million people in a few seconds without giving warning beforehand.

Anything that hinted at corruption always filled him with a wild hope

Winston Smith: Does Big Brother exist?
O'Brien: Of course he exists.
Winston Smith: Does he exist like you or me?
O'Brien: You do not exist.

it was an act of self-hypnosis, a deliberate drowning of consciousness by means of rhythmic noise.

Big Brother is watching you.