"Until philosophers are kings, or the kings and princes of this world have the spirit and power of philosophy, and political greatness and wisdom meet in one, and those commoner natures who pursue either to the exclusion of the other are compelled to stand aside, cities will never have rest from their evils—no, nor the human race, as I believe—and then only will this our State have a possibility of life and behold the light of day."[73]
And yet the question of the actual existence of a perfect State is not the question of supreme importance. For Plato has grasped the thought that man is controlled not only by what he sees, but by what he images as desirable. And if a man has once formed the image of an ideal State or city of this kind, in which justice prevails, and life reaches fuller and higher possibilities than it has yet attained, this is the main thing:
"In heaven, there is laid up a pattern of it, methinks, which he who desires may behold, and beholding, may set his own house in order. But whether such an one exists, or ever will exist in fact, is no matter: for he will live after the manner of that city, having nothing to do with any other."[74]
The Social as Law of Nature.—The social nature of man, thus vindicated by Plato and Aristotle, remained as the permanent possession of Greek thought. Even the Epicureans, who developed further the hedonistic theory of life, emphasized the values of friendship as among the choicest and most refined sources of pleasure. The Stoics, who in their independence of wants took up the tradition of the Cynics, were yet far from interpreting this as an independence of society. The disintegration of the Greek states made it impossible to find the social body in the old city-state, and so we find with the Stoics a certain cosmopolitanism. It is the highest glory of man to be a citizen not of Athens but of the universe—not of the city of Cecrops, but of the city of Zeus. And through this conception the social nature of man was made the basis of a "natural law," which found its expression in the principles of Roman and modern jurisprudence.
Passion or Reason.—In answering the question as to the true nature of man, Plato and Aristotle found the suggestions likewise for the problem of individual good. For if the soldier as the seeker for fame and honor, the avaricious man embodying the desire for wealth, and still more, the tyrant personifying the unbridled expression of every lust and passion, are abhorrent, is it not easy to see that an orderly and harmonious development of impulses under the guidance and control of reason, is far better than that uncramped expression of desires and cravings for which some of the radical individualists and sensualists of the day were clamoring? As representative of this class, hear Callicles:
"I plainly assert that he who would truly live ought to allow his desires to wax to the uttermost, and not to chastise them; but when they have grown to their greatest, he should have courage and intelligence to minister to them and to satisfy all his longings. And this I affirm to be natural justice and nobility." The temperate man is a fool. It is only in hungering and eating, in thirsting and drinking, in having all his desires about him, and gratifying every possible desire, that man lives happily.[75]
But even Callicles himself admits that there are certain men, the creatures of degraded desire, whose lives are not ideal, and hence that there must be some choice of pleasure. And carrying out in the individual life the thought above suggested by the State, Plato raises the question as to whether man, a complex being, with both noble and ignoble impulses, and with the capacity of controlling reason, can be said to make a wise choice if he lets the passions run riot and choke out wholly his rational nature:
"Is not the noble that which subjects the beast to the man, or rather to the god in man; and the ignoble that which subjects the man to the beast? He can hardly avoid admitting this—can he now? Not if he has any regard for my opinion. But, if he admits this, we may ask him another question: How would a man profit if he received gold and silver on the condition that he was to enslave the noblest part of him to the worst? Who can imagine that a man who sold his son or daughter into slavery for money, especially if he sold them into the hands of fierce and evil men, would be the gainer, however large might be the sum which he received? And will any one say that he is not a miserable caitiff who sells his own divine being to that which is most atheistical and detestable and has no pity? Eriphyle took the necklace as the price of her husband's life, but he is taking a bribe in order to compass a worse ruin."[76]
Necessity of a Standard for Pleasure.—If, for the moment, we rule out the question of what is noble or "kalon," and admit that the aim of life is to live pleasantly, or if, in other words, it is urged as above that justice is not profitable and that hence he who would seek the highest good will seek it by some other than the thorny path, we must recognize that the decision as to which kind of pleasure is preferable will depend on the character of the man who judges:
"Then we may assume that there are three classes of men—lovers of wisdom, lovers of ambition, lovers of gain? Exactly. And there are three kinds of pleasure, which are their several objects? Very true. Now, if you examine the three classes and ask of them in turn which of their lives is pleasantest, each of them will be found praising his own and deprecating that of others; the money-maker will contrast the vanity of honor or of learning with the solid advantages of gold and silver? True, he said. And the lover of honor—what will be his opinion? Will he not think that the pleasure of riches is vulgar, while the pleasure of learning, which has no need of honor, he regards as all smoke and nonsense? True, he said. But may we not suppose, I said, that philosophy estimates other pleasures as nothing in comparison with knowing the truth, and in that abiding, ever learning, in the pursuit of truth, not far indeed from the heaven of pleasure? The other pleasures the philosopher disparages by calling them necessary, meaning that if there were no necessity for them, he would not have them. There ought to be no doubt about that, he replied. Since, then, the pleasure of each class and the life of each is in dispute, and the question is not which life is most honorable, or better or worse, but which is the more pleasant or painless—how shall we know? I cannot tell, he said. Well, but what ought to be the criterion? Is any better than experience and wisdom and reason? There cannot be a better, he said. If wealth and gain were the criterion, then what the lover of gain praised and blamed would surely be the truest? Assuredly. Of if honor or victory or courage, in that case the ambitions or contentments would decide best? Clearly. But since experience and wisdom and reason are the judges, the inference of course is, that the truest pleasures are those which are approved by the lover of wisdom and reason."[77]
It is thus evident that even if we start out to find the good in pleasure, we need some kind of measuring art. We need a "standard for pleasure," and this standard can be found only in wisdom. And this forces us to maintain that wisdom is after all the good. Not merely intellectual attainment—a life of intellect without feeling would be just as little a true human life as would the life of an oyster, which has feeling with no intelligence. A life which includes sciences and arts, and the pure pleasures of beauty, presided over by wisdom and measure and symmetry—this is Plato's vision of the life of the individual, viewed from within.