They clichรฉs will construct your sentences for you - even think your thoughts for you, to a certain extent - and at need they will perform the important service of partially concealing your meaning even from yourself.
George OrwellWhen you make love you're using up energy; and afterwards you feel happy and don't give a damn for anything. They can't bear you to feel like that. They want you to be bursting with energy all the time. All this marching up and down and cheering and waving flags is simply sex gone sour. If you're happy inside yourself, why should you get excited about Big Brother and the Three-Year Plans and the Two Minutes Hate and all the rest of their bloody rot?
George OrwellSometimes they threaten you with something - something you can't stand up to, can't even think about. And then you say, Don't do it to me, do it to somebody else, do it to So-and-so. And perhaps you might pretend, afterwards, that it was only a trick and that you just said it to make them stop and didn't mean it. But that isn't true. At the time when it happens you do mean it. You think there's no other way of saving yourself, and you're quite ready to save yourself that way. You WANT it to happen to the other person. You don't give a damn what they suffer. All you care is yourself.
George Orwell