"Let me offer a general and tactical reason that seems self-evident: power is tolerable only on condition that it mask a substantial part of itself. Its success is proportional to its ability to hide its own mechanisms… would they [those upon whom power operates] accept it if they did not see it as a mere limit placed on their desire, leaving a measure of freedom–however slight–intact? Power as a pure limit set on freedom is, at least in our society, the general form of its acceptability."