(1) Now every single class of living thing, Asclepius, of whatsoever kind, or it be mortal or be rational, whether it be endowed with soul, or be without one, just as each has its class, so does each several [class] have images of its own class. And though each separate class of animal has in it every form of its own class, still in the selfsame [kind of] form the units differ from each other. And so although the class of men is of one kind, so that a man can be distinguished by his [general] look, still individual men within the sameness of their [common] form do differ from each other.

(3) For that, in order that a man should be complete in either part, observe that he hath been composed of elements of either part in sets of four;—with hands, and feet, both of them pairs, and with the other members of his body, by means of which he may do service to the lower (that is to say the terrene) world. And to these parts [are added other] four;—of sense, and soul, of memory, and foresight, by means of which he may become acquainted with the rest of things divine, and judge of them. Hence it is brought about that man investigates the differences and qualities, effects and quantities of things, with critical research; yet, as he is held back with the too heavy weight of body’s imperfection, he cannot properly descry the causes of the nature of [all] things which [really] are the true ones.

(24) Now in definitions, difference is assumed, which, in the definition, occupies the place of sign. The faculty of laughing, accordingly, being added to the definition of man, makes the whole - a rational, mortal, terrestrial, walking, laughing animal. For the things added by way of difference to the definition are the signs of the properties of things; but do not show the nature of the things themselves. Now they say that the difference is the assigning of what is peculiar; and as that which has the difference differs from all the rest, that which belongs to it alone, and is predicated conversely of the thing, must in definitions be assumed by the first genus as principal and fundamental.

(2) those things that are difficult to distinguish you might distinguish, and those things that are unknown to the multitude you might know, and that you might be restored to that which is yours, which was already intact and so needs no restoration.

(64) Thou seest also that nature cannot be distinguished from the powers of God, but is all one body.

(1) According to another division, therefore, the numerous herd [or the great mass] of men is arranged under nature, is governed by physical powers, looks downward to the works of nature, gives completion to the administration of Fate, and to things pertaining to Fate, because it belongs to the order of it, and always employs practical reasoning about such particulars alone as subsist according to nature. But there are a certain few who, by employing a certain supernatural power of intellect, are removed indeed from nature, but are conducted to a separate and unmingled intellect; and these, at the same time, become superior to physical powers. Others again, who are the media between these, tend to things which subsist between nature and a pure intellect. And of these, some indeed equally follow both nature and an immaculate intellect; others embrace a life which is mingled from both; and others are liberated from things subordinate, and betake themselves to such as are more excellent.

(2) First, then, let us examine those good qualities by which we hold Likeness comes, and seek to establish what is this thing which, as we possess it, in transcription, is virtue but as the Supreme possesses it, is in the nature of an exemplar or archetype and is not virtue.

We must first distinguish two modes of Likeness.

There is the likeness demanding an identical nature in the objects which, further, must draw their likeness from a common principle: and there is the case in which B resembles A, but A is a Primal, not concerned about B and not said to resemble B. In this second case, likeness is understood in a distinct sense: we no longer look for identity of nature, but, on the contrary, for divergence since the likeness has come about by the mode of difference.

What, then, precisely is Virtue, collectively and in the particular? The clearer method will be to begin with the particular, for so the common element by which all the forms hold the general name will readily appear.

The Civic Virtues, on which we have touched above, are a principle or order and beauty in us as long as we remain passing our life here: they ennoble us by setting bound and measure to our desires and to our entire sensibility, and dispelling false judgement- and this by sheer efficacy of the better, by the very setting of the bounds, by the fact that the measured is lifted outside of the sphere of the unmeasured and lawless.

And, further, these Civic Virtues- measured and ordered themselves and acting as a principle of measure to the Soul which is as Matter to their forming- are like to the measure reigning in the over-world, and they carry a trace of that Highest Good in the Supreme; for, while utter measurelessness is brute Matter and wholly outside of Likeness, any participation in Ideal-Form produces some corresponding degree of Likeness to the formless Being There. And participation goes by nearness: the Soul nearer than the body, therefore closer akin, participates more fully and shows a godlike presence, almost cheating us into the delusion that in the Soul we see God entire.

This is the way in which men of the Civic Virtues attain Likeness.

(24) 'Tis wrong to mix these two, It is needful to sift them one from the other." God said, "From whom learnest thou this knowledge Whereby thou hast constructed a threshing-floor?" Moses said, "O Lord, Thou hast given me discernment." God said, "Then have not I also discernment? Amongst my creatures there are pure spirits, The oyster-shells are not all of the same value; Some contain pearls, and others black stones. It is needful to discern the bad from the good, The people of this world exist in order to manifest

(2) There are certain criteria common to men, as the senses; and others that belong to those who have employed their wills and energies in what is true, -the methods which are pursued by the mind and reason, to distinguish between true and false propositions.

(12) It should however be added that if the Idea of man exists in the Supreme, there must exist the Idea of reasoning man and of man with his arts and crafts; such arts as are the offspring of intellect Must be There.

It must be observed that the Ideas will be of universals; not of Socrates but of Man: though as to man we may enquire whether the individual may not also have place There. Under the heading of individuality there is to be considered the repetition of the same feature from man to man, the simian type, for example, and the aquiline: the aquiline and the simian must be taken to be differences in the Idea of Man as there are different types of the animal: but Matter also has its effect in bringing about the degree of aquilinity. Similarly with difference of complexion, determined partly by the Reason-Principle, partly by Matter and by diversity of place.

(476) And inasmuch as they are two, each of them is one? True again. And of just and unjust, good and evil, and of every other class, the same remark holds: taken singly, each of them is one; but from the various combinations of them with actions and things and with one another, they are seen in all sorts of lights and appear many? Very true. And this is the distinction which I draw between the sight- loving, art-loving, practical class and those of whom I am speaking, and who are alone worthy of the name of philosophers. How do you distinguish them? he said. The lovers of sounds and sights, I replied, are, as I conceive, fond of fine tones and colours and forms and all the artificial products that are made out of them, but their mind is incapable of seeing or loving absolute beauty. True, he replied. Few are they who are able to attain to the sight of this. Very true. And he who, having a sense of beautiful things has no sense of absolute beauty, or who, if another lead him to a knowledge of that beauty is unable to follow—of such an one I ask, Is he awake or in a dream only? Reflect: is not the dreamer, sleeping or waking, one who likens dissimilar things, who puts the copy in the place of the real object? I should certainly say that such an one was dreaming. But take the case of the other, who recognises the existence

(434) example appeared to be the State, and accordingly we constructed as good a one as we could, knowing well that in the good State justice would be found. Let the discovery which we made be now applied to the individual—if they agree, we shall be satisfied; or, if there be a difference in the individual, we will come back to the State and have another trial of the theory. The friction of the two when rubbed together may possibly strike a light in which justice will shine forth, and the vision which is then revealed we will fix in our souls. That will be in regular course; let us do as you say. I proceeded to ask: When two things, a greater and less, are called by the same name, are they like or unlike in so far as they are called the same? Like, he replied. The just man then, if we regard the idea of justice only, will be like the just State? He will. And a State was thought by us to be just when the three classes in the State severally did their own business; and also thought to be temperate and valiant and wise by reason of certain other affections and qualities of these same classes? True, he said. And so of the individual; we may assume that he has the

(18) These problems at any rate all serve to show that, while in general it is necessary to look for differences by which to separate things from each other, to hunt for differences of the differences themselves is both futile and irrational. We cannot have substances of substances, quantities of quantities, qualities of qualities, differences of differences; differences must, where possible, be found outside the genus, in creative powers and the like: but where no such criteria are present, as in distinguishing dark-green from pale-green, both being regarded as derived from white and black, what expedient may be suggested?

Sense-perception and intelligence may be trusted to indicate diversity but not to explain it: explanation is outside the province of sense-perception, whose function is merely to produce a variety of information; while, as for intelligence, it works exclusively with intuitions and never resorts to explanations to justify them; there is in the movements of intelligence a diversity which separates one object from another, making further differentiation unnecessary.

Do all qualities constitute differentiae, or not? Granted that whiteness and colours in general and the qualities dependent upon touch and taste can, even while they remain species , become differentiae of other things, how can grammar and music serve as differentiae? Perhaps in the sense that minds may be distinguished as grammatical and musical, especially if the qualities are innate, in which case they do become specific differentiae.

It remains to decide whether there can be any differentia derived from the genus to which the differentiated thing belongs, or whether it must of necessity belong to another genus? The former alternative would produce differentiae of things derived from the same genus as the differentiae themselves- for example, qualities of qualities. Virtue and vice are two states differing in quality: the states are qualities, and their differentiae qualities- unless indeed it be maintained that the state undifferentiated is not a quality, that the differentia creates the quality.

But consider the sweet as beneficial, the bitter as injurious: then bitter and sweet are distinguished, not by Quality, but by Relation. We might also be disposed to identify the sweet with the thick, and the Pungent with the thin: "thick" however hardly reveals the essence but merely the cause of sweetness- an argument which applies equally to pungency.

We must therefore reflect whether it may be taken as an invariable rule that Quality is never a differentia of Quality, any more than Substance is a differentia of Substance, or Quantity of Quantity.

Surely, it may be interposed, five differs from three by two. No: it exceeds it by two; we do not say that it differs: how could it differ by a "two" in the "three"? We may add that neither can Motion differ from Motion by Motion. There is, in short, no parallel in any of the other genera.

In the case of virtue and vice, whole must be compared with whole, and the differentiation conducted on this basis. As for the differentia being derived from the same genus as themselves, namely, Quality, and from no other genus, if we proceed on the principle that virtue is bound up with pleasure, vice with lust, virtue again with the acquisition of food, vice with idle extravagance, and accept these definitions as satisfactory, then clearly we have, here too, differentiae which are not qualities.

(9) Accordingly we must first take the genus, in which are the points that are nearest those above; and after this the next difference. And the succession of differences, when cut and divided, completes the "What it is." There is no necessity for expressing all the differences of each thing, but those which form the species.

(2) The Reader should not make himself blind through his unbelief and dull apprehension; for here I bring in the whole or total nature, with all her children, for a witness and a demonstration. If thou art rational, then look round about thee, and view thyself; also consider thyself aright, and then thou wilt soon find from or out of what spirit I write.

(2) Such, then, is the method of the discovery [of truth]. For we must begin with the knowledge of the questions to be discussed. For often the form of the expression deceives and confuses and disturbs the mind, so that it is not easy to discover to what class the thing is to be referred; as, for example, whether the foetus be an animal. For, having a conception of an animal and a foetus, we inquire if it be the case that the foetus is an animal; that is, if the substance which is in the foetal state possesses the power of motion, and of sensation besides. So that the inquiry is regarding functions and sensations in a substance previously known. Consequently the man who proposes the question is to be first asked, what he calls an animal. Especially is this to be done whenever we find the same term applied to various purposes; and we must examine whether what is signified by the term is disputed, or admitted by all. For were one to say that he calls whatever grows and is fed an animal, we shall have again to ask further, whether he considered plants to be animals; and then, after declaring himself to this effect, he must show what it is which is in the foetal state, and is nourished.

(1) And all dependent from Above are subdivided into species in the fashion which I am to tell. The genera of all things company with their own species; so that the genus is a class in its entirety, the species is part of a genus. The genus of the Gods will, therefore, make the species of the Gods out of itself. In like way, too, the genus of the daimons, and of men, likewise of birds, and of all [animals] the Cosmos doth contain within itself, brings into being species like itself. There is besides a genus other than the animal,—a genus, or indeed a soul, in that it’s not without sensation,—in consequence of which it both finds happiness in suitable conditions, and pines and spoils in adverse ones;—I mean [the class] of all things on the earth which owe their life to the sound state of roots and shoots, of which the various kinds are scattered through the length and breadth of Earth.

(10) Another method of division is possible: substances may be classed as hot-dry, dry-cold, cold-moist, or however we choose to make the coupling. We may then proceed to the combination and blending of these couples, either halting at that point and going no further than the compound, or else subdividing by habitation- on the earth, in the earth- or by form and by the differences exhibited by living beings, not qua living, but in their bodies viewed as instruments of life.

Differentiation by form or shape is no more out of place than a division based on qualities- heat, cold and the like. If it be objected that qualities go to make bodies what they are, then, we reply, so do blendings, colours, shapes. Since our discussion is concerned with Sensible Substance, it is not strange that it should turn upon distinctions related to sense-perception: this Substance is not Being pure and simple, but the Sensible Being which we call the Universe.

We have remarked that its apparent subsistence is in fact an assemblage of Sensibles, their existence guaranteed to us by sense-perception. But since their combination is unlimited, our division must be guided by the Form-Ideas of living beings, as for example the Form-Idea of Man implanted in Body; the particular Form acts as a qualification of Body, but there is nothing unreasonable in using qualities as a basis of division.

We may be told that we have distinguished between simple and composite bodies, even ranking them as opposites. But our distinction, we reply, was between material and organic bodies and raised no question of the composite. In fact, there exists no means of opposing the composite to the simple; it is necessary to determine the simples in the first stage of division, and then, combining them on the basis of a distinct underlying principle, to differentiate the composites in virtue of their places and shapes, distinguishing for example the heavenly from the earthly.

These observations will suffice for the Being , or rather the Becoming, which obtains in the Sensible realm.

(2) The species however, and the parts of it, may be surveyed as follows: Since there are two parts of the soul, the rational and the irrational; the latter is divided into the irascible and appetitive. And the rational part, indeed, is that by which we judge and contemplate; but the irrational part is that by which we are impelled and desire. And of this, that which is as it were adapted to defend us, and revenge incidental molestations, is denominated the irascible part; but that which is as it were orectic of, and desires to preserve the proper constitution of the body, is the appetitive part. It is evident therefore, that the multitude of the virtues, their differences, and their peculiarities, follow conformably to these parts of the soul.

(17) This procedure, if approved, will entail a distinction between psychic and bodily qualities, the latter belonging specifically to body.

If we decide to refer all souls to the higher, we are still at liberty to perform for Sensible qualities a division founded upon the senses themselves- the eyes, the ears, touch, taste, smell; and if we are to look for further differences, colours may be subdivided according to varieties of vision, sounds according to varieties of hearing, and so with the other senses: sounds may also be classified qualitatively as sweet, harsh, soft.

Here a difficulty may be raised: we divide the varieties of Substance and their functions and activities, fair or foul or indeed of any kind whatsoever, on the basis of Quality, Quantity rarely, if ever, entering into the differences which produce species; Quantity, again, we divide in accordance with qualities of its own: how then are we to divide Quality itself into species? what differences are we to employ, and from what genus shall we take them? To take them from Quality itself would be no less absurd than setting up substances as differences of substances.

How, then, are we to distinguish black from white? how differentiate colours in general from tastes and tangible qualities? By the variety of sense-organs? Then there will be no difference in the objects themselves.

But, waiving this objection, how deal with qualities perceived by the same sense-organ? We may be told that some colours integrate, others disintegrate the vision, that some tastes integrate, others disintegrate the tongue: we reply that, first, it is the actual experiences that we are discussing and it is to these that the notions of integration and disintegration must be applied; secondly, a means of differentiating these experiences has not been offered.

It may be suggested that we divide them by their powers, and this suggestion is so far reasonable that we may well agree to divide the non-sensuous qualities, the sciences for example, on this basis; but we see no reason for resorting to their effects for the division of qualities sensuous. Even if we divide the sciences by their powers, founding our division of their processes upon the faculties of the mind, we can only grasp their differences in a rational manner if we look not only to their subject-matter but also to their Reason-Principles.

But, granted that we may divide the arts by their Reason-Principles and theorems, this method will hardly apply to embodied qualities. Even in the arts themselves an explanation would be required for the differences between the Reason-Principles themselves. Besides, we have no difficulty in seeing that white differs from black; to account for this difference is the purpose of our enquiry.