the other hand, ignores all such external considerations. True to his usual method, he reduces the legal conscience to a purely dialectical process. Just as in an argument the disputants are, or ought to be, bound by their own admissions, so also the citizen is bound by a tacit compact to fulfil the laws whose protection he has enjoyed and of whose claims his protracted residence is an acknowledgment. Here there is no need of a transcendent foundation for morality, as none but logical considerations come into play. And it also deserves to be noticed that, where this very idea of an obligation based on acceptance of services had been employed by Socrates, it was discarded by Plato. In the Euthyphro, a Dialogue devoted to the discussion of piety, the theory that religion rests on an exchange of good offices between gods and men is mentioned only to be scornfully rejected. Equally remarkable, and equally in advance of the Socratic standpoint, is a principle enunciated in the Crito, that retaliation is wrong, and that evil should never be returned for evil.' And both are distinct anticipations of the earliest Christian teaching, though both are implicitly contradicted by the socalled religious services celebrated in Christian churches, and by the doctrine of a divine retribution which is only not retaliatory because it is infinitely in excess of the provocation received.

If the earliest of Plato's enquiries, while they deal with the same subjects and are conducted on the same method as those cultivated by Socrates, evince a breadth of view surpassing anything recorded of him by Xenophon, they also exhibit traces of an influence disconnected with and inferior in value to his. On more than one occasion Plato reasons, or rather quibbles, in a style which he has elsewhere held up to ridicule as characteristic of the Sophists, with such success that the name of sophistry has clung to it ever since. I P. 49, A ff. Zeller, 142.

2 Charmides, 161 E; Lysis, 212 C.

Indeed, some of the verbal fallacies employed are so transparent that we can hardly suppose them to be unintentional, and we are forced to conclude that the young despiser of human wisdom was resolved to maintain his thesis with any weapons, good or bad, which came to hand. And it seems much more likely that he learned the eristic art from Protagoras or from his disciples than from Socrates. Plato spent a large part of his life in opposing the Sophists-that is to say, the paid professors of wisdom and virtue; but in spite of, or rather perhaps because of, this very opposition, he was profoundly affected by their teaching and example. It is quite conceivable, although we do not find it stated as a fact, that he resorted to them for instruction when a young man, and before coming under the influence of Socrates, an event which did not take place until he was twenty years old; or he may have been directed to them by Socrates himself. With all its originality, his style bears traces of a rhetorical training in the more elaborate passages, and the Sophists were the only teachers of rhetoric then to be found. His habit of clothing philosophical lessons in the form of a myth seems also to have been borrowed from them. It would, therefore, not be surprising that he should cultivate their argumentative legerdemain side by side with the more strict and severe discipline of Socratic dialectics.

Plato does, no doubt, make it a charge against the Sophists that their doctrines are not only false and immoral, but that they are put together without any regard for logical coherence. It would seem, however, that this style of attack belongs rather to the later and constructive than to the carlier and receptive period of his intellectual development. The original cause of his antagonism to the professional teachers seems to have been their general pretensions to knowledge, which, from the standpoint of universal scepticism, were, of course, utterly illusive; together with a feeling of aristocratic contempt for a calling in which considerations of

pecuniary interest were involved, heightened in this instance by a conviction that the buyer received nothing better than a sham article in exchange for his money. Here, again, a parallel suggests itself with the first preaching of the Gospel. The attitude of Christ towards the scribes and Pharisees, as also that of St. Paul towards Simon Magus, will help us to understand how Plato, in another order of spiritual teaching, must have regarded the hypocrisy of wisdom, the intrusion of fraudulent traders into the temple of Delphic inspiration, and the sale of a priceless blessing whose unlimited diffusion should have been its own and only reward.

Yet throughout the philosophy of Plato we meet with a tendency to ambiguous shiftings and reversions of which, here also, due account must be taken. That curious blending of love and hate which forms the subject of a mystical lyric in Mr. Browning's Pippa Passes, is not without its counterpart in purely rationalistic discussion. If Plato used the Socratic method to dissolve away much that was untrue, because incomplete, in Socratism, he used it also to absorb much that was deserving of development in Sophisticism. If, in one sense, the latter was a direct reversal of his master's teaching, in another it served as a sort of intermediary between that teaching and the unenlightened consciousness of mankind. The shadow should not be confounded with the substance, but it might show by contiguity, by resemblance, and by contrast where the solid reality lay, what were its outlines, and how its characteristic lights might best be viewed.

Such is the mild and conciliatory mode of treatment at first adopted by Plato in dealing with the principal representative of the Sophists-Protagoras. In the Dialogue which bears his name the famous humanist is presented to us as a professor of popular unsystematised morality, proving by a variety of practical arguments and ingenious illustrations that virtue can be taught, and that the preservation of social order depends upon the possibility of teaching it; but unwilling to

go along with the reasonings by which Socrates shows the applicability of rigorously scientific principles to conduct. Plato has here taken up one side of the Socratic ethics, and developed it into a complete and self-consistent theory. The doctrine inculcated is that form of utilitarianism to which Mr. Sidgwick has given the name of egoistic hedonism. We are brought to admit that virtue is one because the various virtues reduce themselves in the last analysis to prudence. It is assumed that happiness, in the sense of pleasure and the absence of pain, is the sole end of life. Duty is identified with interest. Morality is a calculus for computing quantities of pleasure and pain, and all virtuous action is a means for securing a maximum of the one together with a minimum of the other. Ethical science is constituted; it can be taught like mathematics; and so far the Sophists are right, but they have arrived at the truth by a purely empirical process; while Socrates, who professes to know nothing, by simply following the dialectic impulse strikes out a generalisation which at once confirms and explains their position; yet from self-sufficiency or prejudice they refuse to agree with him in taking their stand on its only logical foundation.

That Plato put forward the ethical theory of the Protagoras in perfect good faith cannot, we think, be doubted; although in other writings he has repudiated hedonism with contemptuous aversion; and it seems equally evident that this was his earliest contribution to positive thought. Of all his theories it is the simplest and most Socratic; for Socrates, in endeavouring to reclaim the foolish or vicious, often spoke as if self-interest was the paramount principle of human nature; although, had his assumption been formulated as an abstract proposition, he too might have shrunk from it with something of the uneasiness attributed to Protagoras. And from internal evidence of another description we have reason to think that the Dialogue in question is a comparatively juvenile production, remembering always that the period of youth was much more

One

protracted among the Greeks than among ourselves. almost seems to recognise the hand of a boy just out of college, who delights in drawing caricatures of his teachers; and who, while he looks down on classical scholarship in comparison with more living and practical topics, is not sorry to show that he can discuss a difficult passage from Simonides better than the professors themselves.

III.

Our survey of Plato's first period is now complete; and we have to enter on the far more arduous task of tracing out the circumstances, impulses, and ideas by which all the scattered materials of Greek life, Greek art, and Greek thought were shaped into a new system and stamped with the impress of an imperishable genius. At the threshold of this second period the personality of Plato himself emerges into greater distinctness, and we have to consider what part it played in an evolution where universal tendencies and individual leanings were inseparably combined.

Plato was born in the year 429, or according to some accounts 427, and died 347 B.C. Few incidents in his biography can be fixed with any certainty; but for our purpose the most general facts are also the most interesting, and about these we have tolerably trustworthy information. His family was one of the noblest in Athens, being connected on the father's side with Codrus, and on the mother's with Solon; while two of his kinsmen, Critias and Charmides, were among the chiefs of the oligarchic party. It is uncertain whether he inherited any considerable property, nor is the question one of much importance. It seems clear that he enjoyed the best education Athens could afford, and that through life he possessed a competence sufficient to relieve him from the cares of material existence. Possibly the preference which he expressed, when far advanced in life, for moderate health and