[60] And indeed the man whom it is not possible either to compel to do anything, or to prevent from doing anything, cannot possibly be a slave; and one cannot compel or prevent the virtuous man. Therefore the virtuous man cannot be a slave; and that he is never under compulsion or under any restraint is quite plain; for that man is under restraint who does not obtain what he desires. But the wise man only desires such things as proceed from virtue, in which it is impossible for him to be disappointed. And again, if he is under compulsion, then it is plain that he does something against his will; but in all cases where there are actions, they are either good ones proceeding from virtue, or evil ones [18] proceeding from wickedness, or else they are of an intermediate and indifferent character.