"In fact, the libertarian would reason that the fact that human nature is a mixture of both good and evil provides its own particular argument in his favor. For if man is such a mixture, then the best societal framework is surely one in which evil is discouraged and the good encouraged. The libertarian maintains that the existence of the State apparatus provides a ready, swift channel for the exercise of evil, since the rulers of the State are thereby legitimated and can wield compulsion in ways that no one else is permitted to do."