The pleasure in complete domination over another person (or other animate creature) is the very essence of the sadistic drive. Another way of formulating the same thought is to say that the aim of sadism is to transform man into a thing, something animate into something inanimate, since by complete and absolute control the living loses one essential quality of life - freedom.
Erich FrommThere is hardly any activity, any enterprise, which is started out with such tremendous hopes and expectations, and yet which fails so regularly, as love.
Erich Fromm