"Who controls the past controls the future: who controls the present controls the past" repeated Winston obediently.

"Who controls the present controls the past" said O'Brien nodding his head with slow approval. 'Is it your opinion Winston that the past has real existence?'

Again the feeling of helplessness descended upon Winston. His eyes flitted towards the dial. He not only did not know whether 'yes' or 'no' was the answer that would save him from pain; he did not even know which answer he believed to be the true one.