“Real power, the power we have to fight for night and day, is not power over things, but over men.” (O’Brein) paused, and for a moment assumed again his air of a schoolmaster questioning a promising pupil: “How does one man assert his power over another, Winston?”
Winston thought. “By making him suffer,” he said.
“Exactly. By making him suffer. Obedience is not enough. Unless he is suffering, how can you be sure that he is obeying your will and not his own?”
–From 1984, by George Orwell
Very rich. Very rich. How can you be sure, indeed?
For the Sadist, power can only be felt when it is wielded, used.