That is, in the master slave relation, the master does not posit the need he has for the other; he holds the power to satisfy this need and does not mediate it; the slave, on the other hand, out of dependence, hope, or fear, internalizes his need for the master; however equally compelling the need may be to them both, it always plays in favor of the oppressor over the oppressed: this explains the slow pace of working class liberation, for example.