IX. (58) What has now then been said with the view of establishing the truth in the matter inquired into is, in my opinion, sufficient. But since physicians are accustomed to cure various diseases with still more various remedies, it is necessary that we should bring a series of proofs, keeping close to the subject, in order to establish those propositions which appear paradoxical by reason of their unusual character. For some people, even if they are convicted by ever so close a series of proofs, can hardly be brought to see their error. (59) Therefore, it is not an incorrect assertion that the man who does everything wisely does everything well; and he who does everything well does everything correctly; and he who does everything correctly does everything also in an unerring, and blameless, and irreproachable, and faultless, and beneficial manner: so that he will have free permission to do everything, and to live as he pleases. And he who has this liberty must be free. But the virtuous man does do everything wisely; therefore he alone is free. (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 proceeding from wickedness, or else they are of an intermediate and indifferent character. (61) Now the actions which proceed from virtue, the creature man performs, not through compulsion but voluntarily, for everything which he does is the result of his deliberate choice; and the actions which proceed from wickedness, inasmuch as they ought to be avoided, he does not do even in dreams; nor again, is it likely that he would perform those actions which are of an indifferent character, between which the mind, as if in a scale, is equally balanced, not being induced to yield to them, as having any attractive power, nor, on the other hand, to regard them with any particular aversion as worthy of hatred; from all which it is plain, that the virtuous man does nothing against his will, and nothing under compulsion; and if he were a slave he would be acting under compulsion: so that the virtuous man must be free.