αα. In the Phædrus (p. 245 Steph.; p. 38 Bekk.) Plato speaks of this in order to show that the Eros is a divine madness (μανία), and is given to us as the greatest happiness. It is a state of enthusiasm, which here has a powerful, predominating aspiration towards the Idea (supra, p. 30): but it is not an enthusiasm proceeding from the heart and feeling, it is not an ordinary perception, but a consciousness and knowledge of the ideal. Plato says that he must expound the nature of the divine and human soul in order to demonstrate the Eros. “The first point is that the soul is immortal. For what moves itself is immortal and eternal, but what obtains its movement from another is transient. What moves itself is the first principle, for it certainly has its origin and first beginning in itself and derived from no other. And just as little can it cease to move, for that alone can cease which derives its motion from another.” Plato thus first develops the simple Notion of the soul as of the self-moving, and, thus far, an element in mind; but the proper life of the mind in and for itself is the consciousness of the absolute nature and freedom of the “I.” When we speak of the immortality of the soul, the idea is most frequently present to us that the soul is like a physical thing which has qualities of all kinds, and while these can certainly be changed, it yet seems that, as being independent of them, it is not subject to change. Now thought is one of these qualities, which are thus independent of the thing; and thought is also here defined as a thing, and as if it could pass away or cease to be. As regards this point, the main feature of the idea is that the soul should be able to subsist as an imperishable thing without having imagination, thought, &c. With Plato the immortality of the soul is, on the other hand, immediately connected with the fact that the soul is itself that which thinks; and hence that thought is not a quality of soul, but its substance. It is as with body, where the weight is not a quality, but its substance; for as the body would no longer exist if the weight were abstracted, the soul would not exist if thought were taken away. Thought is the activity of the universal, not an abstraction, but the reflection into self and the positing of self that takes place in all conceptions. Now because thought is an eternal which remains at home with itself in every change, soul preserves its identity in what is different, just as, for instance, in sensuous perception it deals with what is different, with outside matter, and is yet at home with itself. Immortality has not then the interest to Plato which it has to us from a religious point of view; in that to him it is associated in greater measure with the nature of thought, and with the inward freedom of the same, it is connected with the determination that constitutes the principle of what is specially characteristic of Platonic philosophy, it is connected with the supersensuous groundwork which Plato has established. To Plato the immortality of the soul is hence likewise of great importance.
He proceeds: “To seek to make clear the Idea of the soul would involve investigation laborious for any but a god; but the tongue of man may speak of this more easily through a figure.” Here follows an allegory in which there is, however, something extravagant and inconsistent. He says: “The soul resembles the united power of a chariot and charioteer.” This image expresses nothing to us. “Now the horses” (the desires) “of the gods and the charioteers are good, and of a good breed. With us men, the charioteer at first takes the reins, but one of the horses only is noble and good and of noble origin; the other is ignoble and of ignoble origin. As might be expected, the driving is very difficult. How mortal differ from immortal creatures, we must endeavour to discover. The soul has the care of the inanimate everywhere, and traverses the whole heavens, passing from one idea to another. When perfect and fully winged, she soars upwards” (has elevated thoughts), “and is the ruler of the universe. But the soul whose wings droop roams about till she has found solid ground; then she takes an earthly form which is really moved by her power, and the whole, the soul and body, put together, is called a living creature, a mortal.”[21] The one is thus the soul as thought, existence in and for itself; the other is the union with matter. This transition from thought to body is very difficult, too difficult for the ancients to understand; we shall find more about it in Aristotle. From what has been said, we may find the ground for representing Plato as maintaining the dogma that the soul existed independently prior to this life, and then lapsed into matter, united itself to it, contaminating itself by so doing, and that it is incumbent on it to leave matter again. The fact that the spiritual realizes itself from itself is a point not sufficiently examined by the ancients; they take two abstractions, soul and matter, and the connection is expressed only in the form of a deterioration on the part of soul.
“But as to the immortal,” continues Plato, “if we do not express it in accordance with an apprehending thought, but form an ordinary conception of it, owing to our lack of insight and power to comprehend the nature of God, we conclude that the immortal life of God is that which has a body and soul which, however, are united in one nature (συμπεφυκότα),[22] i.e. not only externally but intrinsically made one. Soul and body are both abstractions, but life is the unity of both; and because God’s nature is to popular conception the holding of body and soul unseparated in one, He is the Reason whose form and content are an undivided unity in themselves.” This is an important definition of God—a great idea which is indeed none other than the definition of modern times. It signifies the identity of subjectivity and objectivity, the inseparability of the ideal and real, that is, of soul and body. The mortal and finite is, on the contrary, correctly defined by Plato as that of which the existence is not absolutely adequate to the Idea, or, more definitely, to subjectivity.
Plato now further explains what happens in the life of the divine Being, which drama the soul thus has before it, and how the wasting of its wings occurs. “The chariots of the gods enter in bands, led by Zeus, the mighty leader, from his winged chariot. An array of other gods and goddesses follow him, marshalled in eleven bands. They present—each one fulfilling his work—the noblest and most blessed of scenes. The colourless and formless and intangible essence requires thought, the lord of the soul, as its only spectator, and thus true knowledge takes its rise. For there it sees what is (τὸ ὄν), and lives in the contemplation of reality, because it follows in an ever-recurring revolution” (of ideas). “In this revolution” (of gods), “it beholds justice, temperance, and knowledge, not in the form of what men call things, for it sees what in truth is absolute (τὸ ὄντως ὄν).” This is thus expressed as though it were something which had happened. “When the soul returns from thus beholding, the charioteer puts up his horses at the stall, gives them ambrosia to eat and nectar to drink. This is the life of the gods. But other souls, through fault of charioteer or horses, fall into confusion, with broken wings depart from these heavenly places, cease to behold the truth, nourish themselves on opinion as their food, and fall to the ground; according as a soul has beheld more or less of truth, it takes a higher or lower place. In this condition it retains a recollection of what it has seen, and if it perceives anything beautiful or right, it is rapt in amazement. The wings once more obtain strength, and the soul, particularly that of a philosopher, recollects its former condition in which, however, it had not seen what was beautiful, just, etc., but beauty and justice themselves.”[23] Thus because the life of the gods is for the soul, when in individual beauty it is reminded of the universal, it is implied that in the soul, as thus absolutely existing, there is the Idea of the beautiful, good and just, as absolute and as potentially and actually universal. This constitutes the general principle of the Platonic conception. But when Plato speaks of knowledge as of a recollection, he knows all the time that this is only putting the matter in similes and metaphors; he did not ask, as theologians used gravely to do, whether the soul had existed before its birth, and, if so, in what particular place. It cannot be said of Plato that he had any such belief, and he never speaks of the matter in the sense that theologians did; in the same way he never spoke about a Fall from a perfect state, for example, as if man had to look on the present life as an imprisonment. But what Plato expressed as the truth is that consciousness in the individual is in reason the divine reality and life; that man perceives and recognizes it in pure thought, and that this knowledge is itself the heavenly abode and movement.
ββ. Knowledge in the form of soul, is more clearly dealt with in the Phædo, where Plato has further developed the ideas about the immortality of the soul. What in the Phædrus is kept definitely apart as myth and truth respectively, and which is made to appear as such, appears less evidently so in the Phædo—that celebrated dialogue in which Plato makes Socrates speak of the immortality of the soul. That Plato should have connected this discussion with the account of the death of Socrates has in all time been matter of admiration. Nothing could seem more suitable than to place the conviction of immortality in the mouth of him who is in the act of leaving life, and to make this conviction living to us through the scene, just as, on the other hand, a death-scene like this is made living to us through that conviction. We must at the same time remark that in what is fitting the following conditions are implied. It must first be really appropriate for the dying person to occupy himself with himself instead of with the universal, with this certainty of himself as a “this” instead of with the Truth. We hence here meet with the ordinary point of view but slightly separated from that of the Notion, but, although this is so, this ordinary point of view is far removed from sinking into that coarse conception of the soul which considers it to be a thing, and asks about its continuance or subsistence as if it were a thing. Thus we find Socrates expressing himself to the effect that the body and what relates to the body is a hindrance in striving after wisdom, the sole business of Philosophy, because the sensuous perception shows nothing purely, or as it is in itself, and what is true becomes known through the removal of the spiritual from the corporeal. For justice, beauty and such things are what alone exists in verity; they are that to which all change and decay is foreign; and these are not perceived through the body, but only in the soul.[24]
We see in this separation the essence of the soul not considered in a material category of Being, but as the universal; we see it still more in what follows, by which Plato proves immortality. A principal point in this argument is that already considered, that the soul has existed before this life, because learning is only a recollection,[25] and this implies that the soul is already implicitly what it becomes. We must not think that the bald conception of innate ideas is hereby indicated—such an expression implies the existence of ideas by nature, as though our thoughts were in part already implanted, and had in part a natural existence which did not first produce itself through the movement of the mind. But Plato mainly founds the idea of immortality on the fact that what is put together is liable to dissolution and decay, while the simple can in no manner be dissolved or destroyed; what is always like itself and the same, is, however, simple. The beautiful, the good, the like, being simple, are incapable of all change; that, on the contrary, in which these universals are, men, things, &c., are the changeable. They are perceptible by the senses, while the former is the supersensuous. Hence the soul which is in thought, and which applies itself to this, as to what is related to it, must therefore be held to have itself a simple nature.[26] Here, then, we again see that Plato does not take simplicity as the simplicity of a thing—not as if it were of anything like a chemical ingredient, for example, which can no longer be represented as inherently distinguished; this would only be empty, abstract identity or universality, the simple as an existent.
But finally the universal really does appear to take the form of an existent, as Plato makes Simmias assert: a harmony which we hear is none else than a universal, a simple which is a unity of the diverse; but this harmony is associated with a sensuous thing and disappears with it, just as music does with the lyre. On the other hand Plato makes Socrates show that the soul is not a harmony in this sense, for the sensuous harmony first exists after its elements, and is a consequence that follows from them. The harmony of the soul is, however, in and for itself, before every sensuous thing. Sensuous harmony may further have diversities within it, while the harmony of the soul has no quantitative distinction.[27] From this it is clear that Plato receives the reality of the soul entirely in the universal, and does not place its true being in sensuous individuality, and hence the immortality of the soul cannot in his case be understood in the ordinary acceptation, as that of an individual thing. Although later on we come across the myth of the sojourn of the soul after death in another and more brilliant earth,[28] we have seen above (pp. 40, 41) what kind of heaven this would be.
γ. The development and culture of the soul must be taken in connection with what precedes. However the idealism of Plato must not be thought of as being subjective idealism, and as that false idealism which has made its appearance in modern times, and which maintains that we do not learn anything, are not influenced from without, but that all conceptions are derived from out of the subject. It is often said that idealism means that the individual produces from himself all his ideas, even the most immediate. But this is an unhistoric, and quite false conception; if we take this rude definition of idealism, there have been no idealists amongst the philosophers, and Platonic idealism is certainly far removed from anything of the kind. In the seventh book of his Republic (p. 518 Steph., pp. 333, 334 Bekk.) Plato says in connection with what I have already stated (pp. 27-29), and in particular reference to the manner in which this learning is created, by which the universal which before was secreted in the mind, developes out of it alone: “We must believe of science and learning (παιδείας), that its nature is not as some assert” (by this he means the Sophists), “who speak of culture as though knowledge were not contained within the soul, but could be implanted therein as sight into blind eyes.” The idea that knowledge comes entirely from without is in modern times found in empirical philosophies of a quite abstract and rude kind, which maintain that everything that man knows of the divine nature comes as a matter of education and habituation, and that mind is thus a quite indeterminate potentiality merely. Carried to an extreme, this is the doctrine of revelation in which everything is given from without. In the Protestant religion we do not find this rude idea in its abstract form, for the witness of the spirit is an essential part of faith, i.e. faith demands that the individual subjective spirit shall on its own account accept and set forth the determination which comes to it in the form of something given from without. Plato speaks against any such idea, for, in relation to the merely popularly expressed myth given above, he says: “Reason teaches that every man possesses the inherent capacities of the soul and the organ with which he learns. That is, just as we might imagine the eye not capable of turning from darkness to light otherwise than with the whole body, so must we be turned with the whole soul from the world of Becoming” (contingent feelings and ideas) “to that of Being, and the soul must gradually learn to endure this sight, and to behold the pure light of Being. But we say that this Being is the good. The art of so doing is found in culture, as being the art of the conversion of the soul—that is, the manner in which a person can most easily and effectually be converted; it does not seek to implant (ἐμποιῆσαι) sight, but—inasmuch as he already possesses it only it has not been properly turned upon himself and hence he does not see the objects that he ought to see—it brings it into operation. The other virtues of the soul are more in conformity with the body; they are not originally in the soul, but come gradually through exercise and habit. Thought (τὸ φρονῆσαι) on the contrary, as divine, never loses its power, and only becomes good or evil through the manner of this conversion.” This is what Plato establishes in regard to the inward and the outward. Such ideas as that mind determines the good from out of itself are to us much more familiar than to Plato; but it was by Plato that they were first maintained.