we admit the distinction which he draws between the opposites and the things which have the opposites, still individuals fall under the latter class; and we have to pass out of the region of human hopes and fears to a conception of an abstract soul which is the impersonation of the ideas. Such a conception, which in Plato himself is but half expressed, is unmeaning to us, and relative only to a particular stage in the history of thought. The doctrine of reminiscence is also a fragment of a former world, which has no place in the philosophy of modern times. But Plato had the wonders of psychology just opening to him, and he had not the explanation of them which is supplied by the analysis of language and the history of the human mind. The question, 'Whence come our abstract ideas?' he could only answer by an imaginary hypothesis. Nor is it difficult to see that his crowning argument is purely verbal, and is but the expression of an instinctive confidence put into a logical form:—'The soul is immortal because it contains a principle of imperishableness.' Nor does he himself seem at all to be aware that nothing is added to human knowledge by his 'safe and simple answer,' that beauty is the cause of the beautiful; and that he is merely reasserting the Eleatic being 'divided by the Pythagorean numbers,' against the Heracleitean doctrine of perpetual generation. The answer to the 'very serious question' of generation and destruction is really the denial of them. For this he would substitute, as in the Republic, a system of ideas, tested, not by experience, but by their consequences, and not explained by actual causes, but by a higher, that is, a more general notion. Consistency with themselves is the only test which is to be applied to them. (Republic, and Phaedo.)
18. To deal fairly with such arguments, they should be translated as far as possible into their modern equivalents. 'If the ideas of men are eternal, their souls are eternal, and if not the ideas, then not the souls.' Such an argument stands nearly in the same relation to Plato and his age, as the argument from the existence of God to immortality among ourselves. 'If God exists, then the soul exists after death; and if there is no God, there is no existence of the soul after death.' For the ideas are to his mind the reality, the truth, the principle of permanence, as well as of intelligence and order in the world. When Simmias and Cebes say that they are more strongly persuaded of the existence of ideas than they are of the immortality of the soul, they represent fairly enough the order of thought in Greek philosophy. And we might say in the same way that we are more certain of the existence of God than we are of the immortality of the soul, and are led by the belief in the one to a belief in the other. The parallel, as Socrates would say, is not perfect, but agrees in as far as the mind in either case is regarded as dependent on something above and beyond herself. The analogy may even be pressed a step further: 'We are more certain of our ideas of truth and right than we are of the existence of God, and are led on in the order of thought from one to the other.' Or more correctly: 'The existence of right and truth is the existence of God, and can never for a moment be separated from Him.'
19. The main argument of the Phaedo is derived from the existence of eternal ideas of which the soul is a partaker; the other argument of the alternation of opposites is replaced by this. And there have not been wanting philosophers of the idealist school who have imagined that the doctrine of the immortality of the soul is a theory of knowledge, and that in what has preceded Plato is accommodating himself to the popular belief. Such a view can only be elicited from the Phaedo by what may be termed the transcendental method of interpretation, and is obviously inconsistent with the Gorgias and the Republic. Those who maintain it are immediately compelled to renounce the shadow which they have grasped, as a play of words only. But the truth is, that Plato in his argument for the immortality of the soul has collected many elements of proof or persuasion, ethical and mythological as well as dialectical, which are not easily to be reconciled with one another; and he is as much in earnest about his doctrine of retribution, which is repeated in all his more ethical writings, as about his theory of knowledge. And while we may fairly translate the dialectical into the language of Hegel, and the religious and mythological into the language of Dante or Bunyan, the ethical speaks to us still in the same voice, and appeals to a common feeling.
20. Two arguments of this ethical character occur in the Phaedo. The first may be described as the aspiration of the soul after another state of being. Like the Oriental or Christian mystic, the philosopher is seeking to withdraw from impurities of sense, to leave the world and the things of the world, and to find his higher self. Plato recognizes in these aspirations the foretaste of immortality; as Butler and Addison in modern times have argued, the one from the moral tendencies of mankind, the other from the progress of the soul towards perfection. In using this argument Plato has certainly confused the soul which has left the body, with the soul of the good and wise. (Compare Republic.) Such a confusion was natural, and arose partly out of the antithesis of soul and body. The soul in her own essence, and the soul 'clothed upon' with virtues and graces, were easily interchanged with one another, because on a subject which passes expression the distinctions of language can hardly be maintained.
21. The ethical proof of the immortality of the soul is derived from the necessity of retribution. The wicked would be too well off if their evil deeds came to an end. It is not to be supposed that an Ardiaeus, an Archelaus, an Ismenias could ever have suffered the penalty of their crimes in this world. The manner in which this retribution is accomplished Plato represents under the figures of mythology. Doubtless he felt that it was easier to improve than to invent, and that in religion especially the traditional form was required in order to give verisimilitude to the myth. The myth too is far more probable to that age than to ours, and may fairly be regarded as 'one guess among many' about the nature of the earth, which he cleverly supports by the indications of geology. Not that he insists on the absolute truth of his own particular notions: 'no man of sense will be confident in such matters; but he will be confident that something of the kind is true.' As in other passages (Gorg., Tim., compare Crito), he wins belief for his fictions by the moderation of his statements; he does not, like Dante or Swedenborg, allow himself to be deceived by his own creations.
The Dialogue must be read in the light of the situation. And first of all we are struck by the calmness of the scene. Like the spectators at the time, we cannot pity Socrates; his mien and his language are so noble and fearless. He is the same that he ever was, but milder and gentler, and he has in no degree lost his interest in dialectics; he will not forego the delight of an argument in compliance with the jailer's intimation that he should not heat himself with talking. At such a time he naturally expresses the hope of his life, that he has been a true mystic and not a mere retainer or wand-bearer: and he refers to passages of his personal history. To his old enemies the Comic poets, and to the proceedings on the trial, he alludes playfully; but he vividly remembers the disappointment which he felt in reading the books of Anaxagoras. The return of Xanthippe and his children indicates that the philosopher is not 'made of oak or rock.' Some other traits of his character may be noted; for example, the courteous manner in which he inclines his head to the last objector, or the ironical touch, 'Me already, as the tragic poet would say, the voice of fate calls;' or the depreciation of the arguments with which 'he comforted himself and them;' or his fear of 'misology;' or his references to Homer; or the playful smile with which he 'talks like a book' about greater and less; or the allusion to the possibility of finding another teacher among barbarous races (compare Polit.); or the mysterious reference to another science (mathematics?) of generation and destruction for which he is vainly feeling. There is no change in him; only now he is invested with a sort of sacred character, as the prophet or priest of Apollo the God of the festival, in whose honour he first of all composes a hymn, and then like the swan pours forth his dying lay. Perhaps the extreme elevation of Socrates above his own situation, and the ordinary interests of life (compare his jeu d'esprit about his burial, in which for a moment he puts on the 'Silenus mask'), create in the mind of the reader an impression stronger than could be derived from arguments that such a one has in him 'a principle which does not admit of death.'
The other persons of the Dialogue may be considered under two heads: (1) private friends; (2) the respondents in the argument.
First there is Crito, who has been already introduced to us in the Euthydemus and the Crito; he is the equal in years of Socrates, and stands in quite a different relation to him from his younger disciples. He is a man of the world who is rich and prosperous (compare the jest in the Euthydemus), the best friend of Socrates, who wants to know his commands, in whose presence he talks to his family, and who performs the last duty of closing his eyes.