But this eternal is also in the determinateness of the other reality, in the Idea of the self-changing and variable principle whose universal is matter. The eternal world has a likeness in the world which belongs to time, but opposed to this there is a second world where change really dwells. The ‘same’ and the ‘other’ are the most abstract opposes that we hitherto have had. The eternal world as posited in time has thus two forms—the form of similarity and the form of differentiality, of variability. The three moments as they appear in the last sphere, are, in the first place, simple essence which is begotten, which has arisen, or determinate matter; secondly the place in which it is begotten, and thirdly that in which what is begotten has its pattern. Plato gives them thus: “Essence (ὄν), place, and generation.” We thus have the conclusion in which space is the mean between individual generation and the universal. If we now oppose this principle to time in its negativity, the mean is this principle of the ‘other’ as the universal principle—“a receiving medium like a mother”—an essence which contains everything, gives to everything an independent subsistence and the power to do as is desired. This principle is destitute of form, yet capable of receiving all forms, the universal principle of all that appears different; it is the false passive matter that we understand when we speak of it—the relative substantial, existence generally, but external existence here, and only abstract Being-for-self. Form is in our reflection distinguished from it, and this, Plato tells us, first comes into existence through the mother. In this principle we have what we call the phenomenal, for matter is just this subsistence of individual generation, in which division is posited. But what appears herein is not to be posited as the individual of earthly existence, but is to be apprehended as the universal in such determinateness. Since matter, as the universal, is the principle of all that is individual, Plato in the first place reminds us that we cannot speak of these sensuous things—fire, water, earth, air, &c. (which thus once more come before us here); for hereby they are expressed as a fixed determination which remains as such—but what remains is only their universality, or they, as universal, are only the fiery, earthly, &c.[56]

Plato further expounds the determinate reality of these sensuous things, or their simple determinateness. In this world of change form is figure in space; for as in the world, which is the immediate image of the eternal, time is the absolute principle, here the absolute ideal principle is pure matter as such, i.e. the existence of space. Space is the ideal essence of this phenomenal world, the mean which unites positivity and negativity, but its determinations are figures. And, indeed, of the different dimensions of space, it is surface which must be taken as true reality, for it is the absolute mean between the line and point in space, and in its first real limitation it is three; similarly the triangle is first among the figures, while the circle has no limit as such within it. Here Plato comes to the deduction of configuration, in which the triangle forms the principle; thus triangles form the essence of sensuous things. Hence he says, in Pythagorean fashion, that the compounding and uniting together of these triangles, as their Idea pertaining to the mean, constitutes once more, according to the original number-relations, the sensuous elements. This is the principle, but how Plato determines the figures of the elements, and the union of the triangles, I refrain from considering.[57]

From this point Plato passes to a system of Physics and Physiology into which we have no intention of following him. It is to be regarded as a first, childlike endeavour to understand sensuous phenomena in their manifold character, but as yet it is superficial and confused. Sensuous manifestations, such as the parts and limbs of the body, are here taken into consideration, and an account of this is given intermingled with thoughts which resemble our formal explanations, and in which the Notion really vanishes. We have to remember the elevated nature of the Idea, as being the main point of excellence in his explanations, for, as far as the realization of the same is concerned, Plato merely felt and expressed it to be a necessity. Speculative thought is often recognizable, but, for the most part, consideration is directed to quite external modes of explanation, such as that of end. The method of treating Physics is a different one from ours, for while with Plato empirical knowledge is still deficient, in modern Physics, on the other hand, the deficiency is found in the Idea. Plato, although he does not seem to conform to our theory of Physics, ignoring as it does the theory of life, and though he proceeds to talk in a childlike way in external analogies, yet in certain cases gives utterance to very deep perceptions, which would be well worthy of our consideration if the contemplation of nature as living had any place with our physicists. His manner of relating the physiological to the physical would be as interesting. Certain portions of his system contain a general element, such as his representation of colours, and from this he goes on to more general considerations. For when Plato begins to talk on this subject, he says of the difficulty of distinguishing and recognizing the individual, that in the contemplation of nature there are “two causes to be distinguished, the one necessary and the other divine. The divine must be sought for in all things with the view of attaining to a blessed life” (this endeavour is an end in and for itself, and in it we find happiness) “in as far as our nature admits, but the necessary causes need be sought only for the sake of divine things, considering that without these necessary causes” (as conditions of knowledge) “we cannot know them.” Contemplation in accordance with necessity is the external contemplation of objects, their connection, relation, &c. “Of the divine, God Himself was the creator,” the divine belongs to that first eternal world—not as to one beyond, but to one now present. “But the creation and disposition of the mortal He committed to His offspring (γεννήμασι).” This is a simple way of passing from the divine to the finite and earthly. “Now they, imitating the divine, because they had received the immortal principle of a soul, fashioned a mortal body, and placed in this a soul of another nature, which was mortal. This mortal nature was subject to violent and irresistible affections—the first of these was pleasure, the greatest incitement to evil, and then pain which is the deterrent (φυγάς) from doing good; also rashness (θάῤῥος) and fear, two foolish counsellors; anger, hope, &c. These sensations all belong to the mortal soul. And that the divine might not be polluted more than necessary, the subordinate gods separated this mortal nature from the seat of the divine, and gave it a different habitation in another part of the body, placing the neck so as to be the isthmus and boundary between head and breast.” The sensations, affections, &c., dwell in the breast or in the heart (we place that which is immortal in the heart); the spiritual is in the head. But in order to make the former as perfect as might be, “they placed,” for instance, “as a supporter to the heart which was burnt with passion, the lung, soft and bloodless, and which had within it hollows like the pores of a sponge, in order that, receiving the breath and drink, it might cool the heart and allow of refreshment and an alleviation of the heat.”[58]

What Plato says of the liver is specially worthy of notice. “Since the irrational part of the soul which desires eating and drinking does not listen to reason, God made the liver so that the soul might be inspired with terror by the power of thought which originates from reason, and which descends upon the liver as on a mirror, receiving upon it figures and giving back images. But if this part of the soul is once more assuaged, in sleep it participates in visions. For the authors of our being, remembering the command of their father to make the human race as good as they could, thus ordered our inferior parts in order that they also might obtain a measure of truth, and placed the oracle in them.” Plato thus ascribes divination to the irrational, corporeal part of man, and although it is often thought that revelation, &c., is by Plato ascribed to reason, this is a false idea; he says that there is a reason, but in irrationality. “Herein we have a conclusive proof that God has given the art of divination to the irrationality of man, for no man when in his wits, attains prophetic truth and inspiration, but when he receives the inspiration either his intelligence is enthralled by sleep or he is demented by some distemper or possession.” Thus Plato makes divination of a lower grade than conscious knowledge. “And when he has recovered his senses he has to remember and explain what he has received, for while he is demented, he cannot judge of it. The ancient saying is therefore very true, that only a man who has his wits can act or judge about himself or his own affairs.”[59] Plato is called the patron saint of mere possession, but, according to this, the assertion is entirely false. These are the principal points in Plato’s Philosophy of Nature.

[3. Philosophy of Mind.]

We have already dealt generally from the theoretical side with the speculative nature of mind as yet unrealized, as well as with the highly important differences with respect to the kinds of knowledge (pp. 28-48). It must also be considered that we find in Plato as yet no developed consciousness of the organization of the theoretic mind, though certainly sensation, memory, &c., are distinguished by him from reason; these moments of the mind are, however, neither accurately discriminated, nor exhibited in their connection, so as to show the necessary relations between them. The only point of interest for us then in Plato’s philosophy of mind is his view of man’s moral nature; and this real, practical side of consciousness is Plato’s greatest glory, and hence must now be specially dealt with by us. Its form certainly does not suggest that Plato gave himself much trouble to discover a supreme moral principle, as it is now called, which, for the very reason that it is supposed to be all-embracing, has in it a certain lack of content. Neither did he trouble himself about a natural right, which is but a trivial abstraction foisted on to the real practical existence, the right; but it is of man’s moral nature that he treats in the Republic. Man’s moral nature seems to us to have little to do with the State; to Plato, however, the reality of mind—that is, of mind as opposed to nature—appeared in its highest truth as the organization of a state which, as such, is essentially moral; and he recognized that the moral nature (free will in its rationality) comes to its right, to its reality, only in an actual nation.

We must further remark that in the Republic Plato introduces the investigation of his subject with the object of showing what justice (δικαιοσύνη) is. After much discussion has taken place, and several definitions of justice have been taken into consideration only to be rejected, Plato at last says in his simple way: “The present investigation is very like the case of a man who is required to read small handwriting at a distance; if it were observed that the same letters were to be seen at a shorter distance and of a larger size, he would certainly prefer to read first the letters where they were written larger, and then would be able to read more easily the small letters also. The same plan should be followed now with justice. Justice is not only in the individual, but also in the state, and the state is greater than the individual; justice is therefore imprinted on states in larger characters, and is more easily recognizable.” (This is different from what the Stoics say of the wise man.) “It is therefore preferable to consider justice as it is to be found in the state.”[60] By making this comparison Plato transforms the question anent justice into an investigation of the state; it is a very simple and graceful transition, though it seems arbitrary. It was great force of insight that really led the ancients to the truth; and what Plato brings forward as merely simplifying the difficulty, may, in fact, be said to exist in the nature of the thing. For it is not convenience which leads him to this position, but the fact that justice can be carried out only in so far as man is a member of a state, for in the state alone is justice present in reality and truth. Justice, not as the understanding, but as mind in its striving to realize itself, is the existence of freedom here and now, the actuality of the self-conscious, intelligent existence in and at home with itself and possessing activity—just as in property, for instance, I place my freedom in this particular thing. But the principle of the state again is the objective reality of justice, the reality in which the whole mind is present and not only the knowledge of myself as this individual. For as the free and reasonable will determines itself, there are laws of freedom; but these laws are nothing else than state-laws, for the Notion of the state implies the existence of a reasoning will. Thus laws have force in the state, and are there matter of practice and of custom; but because self-will is also there in its immediacy, they are not only matter of custom, but must also be a force operating against arbitrary self-will, and showing itself in the courts of justice and in governments. Thus Plato, in order to discern the features of justice, with the instinct of reason fixes his attention on their manner of representation in the state.

Justice in itself is ordinarily represented by us in the form of a natural right, right in a condition of nature; such a condition of nature is, however, a direct moral impossibility. That which is in itself is, by those who do not attain to the universal, held to be something natural, as the necessary moments of the mind are held to be innate ideas. The natural is rather what should be sublated by the mind, and the justice of the condition of nature can only emerge as the absolute injustice of the mind. In contrast with the state, which is the real spirit, the spirit in its simple and as yet unrealized Notion is the abstract implicitude; this Notion must of course precede the construction of its reality; it is this which is conceived of as a condition of nature. We are accustomed to take our start from the fiction of a condition of nature, which is truly no condition of mind, of reasonable will, but of animals among themselves: wherefore Hobbes has justly remarked that the true state of nature is a war of every man against his neighbour. This implicitude of the mind is at the same time the individual man, for in the ordinary conception the universal separates itself from the particular, as if the particular were absolutely and in and for itself what it certainly is, and the Universal did not make it that which it is in truth—as if this were not its essence, but as if the individual element were the most important. The fiction of a state of nature starts from the individuality of the person, his free will, and his relation to other persons according to this free will. Natural justice has thus been a term applied to that which is justice in the individual and for the individual; and the condition of society and of the state has been recognized only as a medium for the individual person, who is the chief end and object. Plato, in direct contrast with this, lays as his foundation the substantial, the universal, and he does this in such a way that the individual as such has this very universal as his end, and the subject has his will, activity, life and enjoyment in the state, so that it may be called his second nature, his habits and his customs. This moral substance which constitutes the spirit, life and Being of individuality, and which is its foundation, systematizes itself into a living, organic whole, and at the same time it differentiates itself into its members, whose activity signifies the production of the whole.

This relation of the Notion to its reality certainly did not come into consciousness with Plato, and thus we do not find in him a philosophic method of construction, which shows first the absolute Idea, then the necessity, inherently existent, for its realization, and this realization itself. The judgment that has been delivered respecting Plato’s Republic therefore is that Plato has therein given a so-called ideal for the constitution of a state; this has become proverbial as a sobriquet, in the sense that this conception is a chimera, which may be mentally conceived of—and in itself, as Plato describes it, it is doubtless excellent and true—that it is also capable of being carried out, but only on the condition that men should be of an excellence such as may possibly be present among the dwellers in the moon, but that it is not realizable for men like those on the earth. But since men most be taken as they are, this ideal cannot be realized by reason of men’s wickedness; and to frame such an ideal is therefore altogether idle.

As to this, the first remark to be made is that in the Christian world in general there passes current an ideal of a perfect man which certainly cannot be carried out in the great body of a nation. We may, perhaps, see it realized in monks or Quakers, or other similar pious folk, but a set of melancholy specimens such as these could never form a nation, any more than lice or parasitic plants could exist for themselves, or otherwise than on an organic body. If such men were to constitute a nation, there would have to be an end of this lamb-like gentleness, this vanity which occupies itself exclusively with its own individual self, which pets and pampers itself, and ever has the image and consciousness of its own excellence before its eyes. For life in the universal and for the universal demands, not that lame and cowardly gentleness, but gentleness combined with a like measure of energy, and which is not occupied with itself and its own sins, but with the universal and what is to be done for it. They before whose eyes that false ideal floats of course find men to be always compassed with weakness and depravity, and never find that ideal realized. For they raise into importance the veriest trifles, which no reasonable man would give heed to; and they think such weaknesses and defects are present even when they overlook them. But we need not esteem this forbearance to be generosity; for it rather implies a perception on their part that from what they call weakness and defect proceeds their own destruction, which comes to pass from their making such defects of importance. The man who has them is immediately through himself absolved from them, in so far as he makes nothing of them. The crime is a crime only when they are real to him, and his destruction is in holding them to be something real. Such an ideal must therefore not stand in our way, whatever be the fairness of its form, and this even when it does not appear exactly as it does to monks and Quakers, but, for instance, when it is the principle of renouncing sensuous things, and abandoning energy of action, which principle must bring to nought much that would otherwise be held of value. It is contradictory to try to keep intact all our relationships, for in those that otherwise hold good there always is a side where opposition is encountered. Moreover, what I have already said regarding the relation between philosophy and the state (p. 23 et seq.) shows that the Platonic ideal is not to be taken in this sense. When an ideal has truth in itself through the Notion, it is no chimera, just because it is true, for the truth is no chimera. Such an idea is therefore nothing idle and powerless, but the real. It is certainly permissible to form wishes, but when pious wishes are all that a man has in regard to the great and true, he may be said to be godless. It is just as if we could do nothing, because everything was so holy and inviolable, or as if we refused to be anything definite, because all that is definite has its defects. The true ideal is not what ought to be real, but what is real, and the only real; if an ideal is held to be too good to exist, there must be some fault in the ideal itself, for which reality is too good. The Platonic Republic would thus be a chimera, not because excellence such as it depicts is lacking to mankind, but because it, this excellence, falls short of man’s requirements. For what is real, is rational. The point to know, however, is what exactly is real; in common life all is real, but there is a difference between the phenomenal world and reality. The real has also an external existence, which displays arbitrariness and contingency, like a tree, a house, a plant, which in nature come into existence. What is on the surface in the moral sphere, men’s action, involves much that is evil, and might in many ways be better; men will ever be wicked and depraved, but this is not the Idea. If the reality of the substance is recognized, the surface where the passions battle must be penetrated. The temporal and transitory certainly exists, and may cause us trouble enough, but in spite of that it is no true reality, any more than the particularity of the subject, his wishes and inclinations, are so.