(8) Of this I'll give thee here on earth an instance, which the eye can see. Regard the animals down here - a man, for instance, swimming! The water moves, yet the resistance of his hands and feet give him stability, so that he is not borne along with it, nor sunk thereby. A: Thou hast, Thrice-greatest one, adduced a most clear instance. H: All motion, then, is caused in station and by station. The motion, therefore, of the cosmos (and of every other hylic to the cosmos, but by things interior [outward] to the exterior - such [things] as soul, or spirit, or some such other thing incorporeal. 'Tis not the body that doth move the living thing in it; nay, not even the whole [body of the universe a lesser] body e'en though there be no life in it.

(7) Hence, too, the errant spheres, being moved contrarily to the inerrant one, are moved by one another by mutual contrariety, [and also] by the spable one through contrariety itself. And this can otherwise not be. The Bears up there , which neither set nor rise, think'st thou they rest or move? A: They move, Thrice-greatest one. H: And what their motion, my Asclepius? A: Motion that turns for ever round the same. H: But revolution - motion around same - is fixed by rest. For "round-the-same" doth stop "beyond-same". "Beyond-same" then, being stopped, if it be steadied in "round-same" - the contrary stands firm, being rendered ever stable by its contrariety.

(6) If space is, therefore, to be thought, [it should] not, [then, be thought as] God, but space. If God is also to be thought, [He should] not [be conceived] as space, but as energy that can contain [all space]. Further, all that is moved is moved not in the moved but in the stable. And that which moves [another] is of course stationary, for 'tis impossible that it should move with it. A: How is it, then, that things down here, Thrice-greatest one, are moved with those that are [already] moved? For thou hast said the errant spheres were moved by the inerrant one. H: This is not, O Asclepius, a moving with, but one against; they are not moved with one another, but one against the other. It is this contrariety which turneth the resistance of their motion into rest. For that resistance is the rest of motion.

(2) Our first observations must be directed to what passes in the Sensible realm for Substance. It is, we shall agree, only by analogy that the nature manifested in bodies is designated as Substance, and by no means because such terms as Substance or Being tally with the notion of bodies in flux; the proper term would be Becoming.

But Becoming is not a uniform nature; bodies comprise under the single head simples and composites, together with accidentals or consequents, these last themselves capable of separate classification.

Alternatively, Becoming may be divided into Matter and the Form imposed upon Matter. These may be regarded each as a separate genus, or else both may be brought under a single category and receive alike the name of Substance.

But what, we may ask, have Matter and Form in common? In what sense can Matter be conceived as a genus, and what will be its species? What is the differentia of Matter? In which genus, Matter or Form, are we to rank the composite of both? It may be this very composite which constitutes the Substance manifested in bodies, neither of the components by itself answering to the conception of Body: how, then, can we rank them in one and the same genus as the composite? How can the elements of a thing be brought within the same genus as the thing itself? Yet if we begin with bodies, our first-principles will be compounds.

Why not resort to analogy? Admitted that the classification of the Sensible cannot proceed along the identical lines marked out for the Intellectual: is there any reason why we should not for Intellectual-Being substitute Matter, and for Intellectual Motion substitute Sensible Form, which is in a sense the life and consummation of Matter? The inertia of Matter would correspond with Stability, while the Identity and Difference of the Intellectual would find their counterparts in the similarity and diversity which obtain in the Sensible realm.

But, in the first place, Matter does not possess or acquire Form as its life or its Act; Form enters it from without, and remains foreign to its nature. Secondly, Form in the Intellectual is an Act and a motion; in the Sensible Motion is different from Form and accidental to it: Form in relation to Matter approximates rather to Stability than to Motion; for by determining Matter's indetermination it confers upon it a sort of repose.

In the higher realm Identity and Difference presuppose a unity at once identical and different: a thing in the lower is different only by participation in Difference and in relation to some other thing; Identity and Difference are here predicated of the particular, which is not, as in that realm, a posterior.

As for Stability, how can it belong to Matter, which is distorted into every variety of mass, receiving its forms from without, and even with the aid of these forms incapable of offspring.

This mode of division must accordingly be abandoned.

(13) Further, they must explain in what sense they hold that Matter tends to slip away from its form . Can we conceive it stealing out from stones and rocks or whatever else envelops it?

And of course they cannot pretend that Matter in some cases rebels and sometimes not. For if once it makes away of its own will, why should it not always escape? If it is fixed despite itself, it must be enveloped by some Ideal-Form for good and all. This, however, leaves still the question why a given portion of Matter does not remain constant to any one given form: the reason lies mainly in the fact that the Ideas are constantly passing into it.

In what sense, then, is it said to elude form?

By very nature and for ever?

But does not this precisely mean that it never ceases to be itself, in other words that its one form is an invincible formlessness? In no other sense has Plato's dictum any value to those that invoke it.

Matter is "the receptacle and nurse of all generation."

Now if Matter is such a receptacle and nurse, all generation is distinct from it; and since all the changeable lies in the realm of generation, Matter, existing before all generation, must exist before all change.

"Receptacle" and "nurse"; then it "retains its identity; it is not subject to modification. Similarly if it is" "the ground on which individual things appear and disappear," and so, too, if it is a "place, a base." Where Plato describes and identifies it as "a ground to the ideas" he is not attributing any state to it; he is probing after its distinctive manner of being.

And what is that?

This which we think of as a Nature-Kind cannot be included among Existents but must utterly rebel from the Essence of Real Beings and be therefore wholly something other than they- for they are Reason-Principles and possess Authentic Existence- it must inevitably, by virtue of that difference, retain its integrity to the point of being permanently closed against them and, more, of rejecting close participation in any image of them.

Only on these terms can it be completely different: once it took any Idea to hearth and home, it would become a new thing, for it would cease to be the thing apart, the ground of all else, the receptacle of absolutely any and every form. If there is to be a ceaseless coming into it and going out from it, itself must be unmoved and immune in all the come and go. The entrant Idea will enter as an image, the untrue entering the untruth.

But, at least, in a true entry?

No: How could there be a true entry into that which, by being falsity, is banned from ever touching truth?

Is this then a pseudo-entry into a pseudo-entity- something merely brought near, as faces enter the mirror, there to remain just as long as the people look into it?

Yes: if we eliminated the Authentic Existents from this Sphere nothing of all now seen in sense would appear one moment longer.

Here the mirror itself is seen, for it is itself an Ideal-Form of a Kind ; but bare Matter, which is no Idea, is not a visible thing; if it were, it would have been visible in its own character before anything else appeared upon it. The condition of Matter may be illustrated by that of air penetrated by light and remaining, even so, unseen because it is invisible whatever happens.

The reflections in the mirror are not taken to be real, all the less since the appliance on which they appear is seen and remains while the images disappear, but Matter is not seen either with the images or without them. But suppose the reflections on the mirror remaining and the mirror itself not seen, we would never doubt the solid reality of all that appears.

If, then, there is, really, something in a mirror, we may suppose objects of sense to be in Matter in precisely that way: if in the mirror there is nothing, if there is only a seeming of something, then we may judge that in Matter there is the same delusion and that the seeming is to be traced to the Substantial-Existence of the Real-Beings, that Substantial-Existence in which the Authentic has the real participation while only an unreal participation can belong to the unauthentic since their condition must differ from that which they would know if the parts were reversed, if the Authentic Existents were not and they were.

(4) For from its twofold source, everything has its great mobility, running, springing, driving and growing; For meekness in nature is a still rest, but the fierceness in every power makes all things moveable, running and generative.

(21) The claim of Motion to be established as a genus will depend upon three conditions: first, that it cannot rightly be referred to any other genus; second, that nothing higher than itself can be predicated of it in respect of its essence; third, that by assuming differences it will produce species. These conditions satisfied, we may consider the nature of the genus to which we shall refer it.

Clearly it cannot be identified with either the Substance or the Quality of the things which possess it. It cannot, further, be consigned to Action, for Passivity also comprises a variety of motions; nor again to Passivity itself, because many motions are actions: on the contrary, actions and passions are to be referred to Motion.

Furthermore, it cannot lay claim to the category of Relation on the mere ground that it has an attributive and not a self-centred existence: on this ground, Quality too would find itself in that same category; for Quality is an attribute and contained in an external: and the same is true of Quantity.

If we are agreed that Quality and Quantity, though attributive, are real entities, and on the basis of this reality distinguishable as Quality and Quantity respectively: then, on the same principle, since Motion, though an attribute has a reality prior to its attribution, it is incumbent upon us to discover the intrinsic nature of this reality. We must never be content to regard as a relative something which exists prior to its attribution, but only that which is engendered by Relation and has no existence apart from the relation to which it owes its name: the double, strictly so called, takes birth and actuality in juxtaposition with a yard's length, and by this very process of being juxtaposed with a correlative acquires the name and exhibits the fact of being double.

What, then, is that entity, called Motion, which, though attributive, has an independent reality, which makes its attribution possible- the entity corresponding to Quality, Quantity and Substance?

But first, perhaps, we should make sure that there is nothing prior to Motion and predicated of it as its genus.

Change may be suggested as a prior. But, in the first place, either it is identical with Motion, or else, if change be claimed as a genus, it will stand distinct from the genera so far considered: secondly, Motion will evidently take rank as a species and have some other species opposed to it- becoming, say- which will be regarded as a change but not as a motion.

What, then, is the ground for denying that becoming is a motion? The fact, perhaps, that what comes to be does not yet exist, whereas Motion has no dealings with the non-existent. But, on that ground, becoming will not be a change either. If however it be alleged that becoming is merely a type of alteration or growth since it takes place when things alter and grow, the antecedents of becoming are being confused with becoming itself. Yet becoming, entailing as it does these antecedents, must necessarily be a distinct species; for the event and process of becoming cannot be identified with merely passive alteration, like turning hot or white: it is possible for the antecedents to take place without becoming as such being accomplished, except in so far as the actual alteration has "come to be"; where, however, an animal or a vegetal life is concerned, becoming takes place only upon its acquisition of a Form.

The contrary might be maintained: that change is more plausibly ranked as a species than is Motion, because change signifies merely the substitution of one thing for another, whereas Motion involves also the removal of a thing from the place to which it belongs, as is shown by locomotion. Even rejecting this distinction, we must accept as types of Motion knowledge and musical performance- in short, changes of condition: thus, alteration will come to be regarded as a species of Motion- namely, motion displacing.

(23) The Motion which acts upon Sensible objects enters from without, and so shakes, drives, rouses and thrusts its participants that they may neither rest nor preserve their identity- and all to the end that they may be caught into that restlessness, that flustering excitability which is but an image of Life.

We must avoid identifying Motion with the objects moved: by walking we do not mean the feet but the activity springing from a potentiality in the feet. Since the potentiality is invisible, we see of necessity only the active feet- that is to say, not feet simply, as would be the case if they were at rest, but something besides feet, something invisible but indirectly seen as an accompaniment by the fact that we observe the feet to be in ever-changing positions and no longer at rest. We infer alteration, on the other hand, from the qualitative change in the thing altered.

Where, then, does Motion reside, when there is one thing that moves and another that passes from an inherent potentiality to actuality? In the mover? How then will the moved, the patient, participate in the motion? In the moved? Then why does not Motion remain in it, once having come? It would seem that Motion must neither be separated from the active principle nor allowed to reside in it; it must proceed from agent to patient without so inhering in the latter as to be severed from the former, passing from one to the other like a breath of wind.

Now, when the potentiality of Motion consists in an ability to walk, it may be imagined as thrusting a man forward and causing him to be continually adopting a different position; when it lies in the capacity to heat, it heats; when the potentiality takes hold of Matter and builds up the organism, we have growth; and when another potentiality demolishes the structure, the result is decay, that which has the potentiality of demolition experiencing the decay. Where the birth-giving principle is active, we find birth; where it is impotent and the power to destroy prevails, destruction takes place- not the destruction of what already exists, but that which intervenes upon the road to existence.

Health comes about in the same way- when the power which produces health is active and predominant; sickness is the result of the opposite power working in the opposite direction.

Thus, Motion is conditioned, not only by the objects in which it occurs, but also by its origins and its course, and it is a distinctive mark of Motion to be always qualified and to take its quality from the moved.

(26) We may now take the various specific types of Motion, such as locomotion, and once again enquire for each one whether it is not to be divided on the basis of direction, up, down, straight, circular- a question already raised; whether the organic motion should be distinguished from the inorganic- they are clearly not alike; whether, again, organic motions should be subdivided into walking, swimming and flight.

Perhaps we should also distinguish, in each species, natural from unnatural motions: this distinction would however imply that motions have differences which are not external. It may indeed be the case that motions create these differences and cannot exist without them; but Nature may be supposed to be the ultimate source of motions and differences alike.

Motions may also be classed as natural, artificial and purposive: "natural" embracing growth and decay; "artificial" architecture and shipbuilding; "purposive" enquiry, learning, government, and, in general, all speech and action.

Again, with regard to growth, alteration and birth, the division may proceed from the natural and unnatural, or, speaking generally, from the characters of the moved objects.

(11) For of objects that are moved, some are moved by impulse and appearance, as animals; and some by transposition, as inanimate objects. And of things without life, plants, they say, are moved by transposition in order to growth, if we will concede to them that plants are without life. To stones, then, belongs a permanent state. Plants have a nature; and the irrational animals possess impulse and perception, and likewise the two characteristics already specified.

(3) That which Timaeus argues of the soul Doth not resemble that which here is seen, Because it seems that as he speaks he thinks. He says the soul unto its star returns, Believing it to have been severed thence Whenever nature gave it as a form. Perhaps his doctrine is of other guise Than the words sound, and possibly may be With meaning that is not to be derided. If he doth mean that to these wheels return The honour of their influence and the blame, Perhaps his bow doth hit upon some truth. This principle ill understood once warped The whole world nearly, till it went astray Invoking Jove and Mercury and Mars. The other doubt which doth disquiet thee Less venom has, for its malevolence Could never lead thee otherwhere from me. That as unjust our justice should appear In eyes of mortals, is an argument Of faith, and not of sin heretical. But still, that your perception may be able To thoroughly penetrate this verity, As thou desirest, I will satisfy thee.

(1) Hermes: All that is moved, Asclepius, is it not moved in something and by something? Asclepius: Assuredly. H: And must not that in which it's moved be greater than the moved? A: It must. H: Mover, again, has greater power than moved? A: It has, of course. H: The nature, furthermore, of that in which it's moved must be quite other from the nature of the moved? A: It must completely.

(9) A: What meanest thou by this, Thrice-greatest one? Is it not bodies, then, that move the stock and stone and all the other things inanimate? H: By no means, O Asclepius. The something-in-the-body, the that-which-moves the thing inanimate, this surely's not a body, for that it moves the two of them - both body of the lifter and the lifted? So that a thing that's lifeless will not move a lifeless thing. That which doth move [another thing] is animate, in that it is the mover. Thou seest, then, how heavy laden is the soul, for it alone doth lift two bodies. That things, moreover, moved are moved in something as well as moved by something is clear.

(14) Of the corporeal thus brought into being by Nature the elemental materials of things are its very produce, but how do animal and vegetable forms stand to it?

Are we to think of them as containers of Nature present within them?

Light goes away and the air contains no trace of it, for light and air remain each itself, never coalescing: is this the relation of Nature to the formed object?

It is rather that existing between fire and the object it has warmed: the fire withdrawn, there remains a certain warmth, distinct from that in the fire, a property, so to speak, of the object warmed. For the shape which Nature imparts to what it has moulded must be recognized as a form quite distinct from Nature itself, though it remains a question to be examined whether besides this form there is also an intermediary, a link connecting it with Nature, the general principle.

The difference between Nature and the Wisdom described as dwelling in the All has been sufficiently dealt with.

(12) This is Plato's conception: to him participation does not, in the case of Matter, comport any such presence of an Ideal-form in a Substance to be shaped by it as would produce one compound thing made up of the two elements changing at the same moment, merging into one another, modified each by the other.

In his haste to his purpose he raises many difficult questions, but he is determined to disown that view; he labours to indicate in what mode Matter can receive the Ideal-forms without being, itself, modified. The direct way is debarred since it is not easy to point to things actually present in a base and yet leaving that base unaffected: he therefore devises a metaphor for participation without modification, one which supports, also, his thesis that all appearing to the senses is void of substantial existence and that the region of mere seeming is vast.

Holding, as he does, that it is the patterns displayed upon Matter that cause all experience in living bodies while the Matter itself remains unaffected, he chooses this way of stating its immutability, leaving us to make out for ourselves that those very patterns impressed upon it do not comport any experience, any modification, in itself.

In the case, no doubt, of the living bodies that take one pattern or shape after having borne another, it might be said that there was a change, the variation of shape being made verbally equivalent to a real change: but since Matter is essentially without shape or magnitude, the appearing of shape upon it can by no freedom of phrase be described as a change within it. On this point one must have "a rule for thick and thin" one may safely say that the underlying Kind contains nothing whatever in the mode commonly supposed.

But if we reject even the idea of its really containing at least the patterns upon it, how is it, in any sense, a recipient?

The answer is that in the metaphor cited we have some reasonably adequate indication of the impassibility of Matter coupled with the presence upon it of what may be described as images of things not present.

But we cannot leave the point of its impassibility without a warning against allowing ourselves to be deluded by sheer custom of speech.

Plato speaks of Matter as becoming dry, wet, inflamed, but we must remember the words that follow: "and taking the shape of air and of water": this blunts the expressions "becoming wet, becoming inflamed"; once we have Matter thus admitting these shapes, we learn that it has not itself become a shaped thing but that the shapes remain distinct as they entered. We see, further, that the expression "becoming inflamed" is not to be taken strictly: it is rather a case of becoming fire. Becoming fire is very different from becoming inflamed, which implies an outside agency and, therefore, susceptibility to modification. Matter, being itself a portion of fire, cannot be said to catch fire. To suggest that the fire not merely permeates the matter, but actually sets it on fire is like saying that a statue permeates its bronze.

Further, if what enters must be an Ideal-Principle how could it set Matter aflame? But what if it is a pattern or condition? No: the object set aflame is so in virtue of the combination of Matter and condition.

But how can this follow on the conjunction when no unity has been produced by the two?

Even if such a unity had been produced, it would be a unity of things not mutually sharing experiences but acting upon each other. And the question would then arise whether each was effective upon the other or whether the sole action was not that of one (the form) preventing the other from slipping away?

But when any material thing is severed, must not the Matter be divided with it? Surely the bodily modification and other experience that have accompanied the sundering, must have occurred, identically, within the Matter?

This reasoning would force the destructibility of Matter upon us: "the body is dissolved; then the Matter is dissolved." We would have to allow Matter to be a thing of quantity, a magnitude. But since it is not a magnitude it could not have the experiences that belong to magnitude and, on the larger scale, since it is not body it cannot know the experiences of body.

In fact those that declare Matter subject to modification may as well declare it body right out.

(3) That also which is added by you, “ or of accidents ,” is foreign from these genera. For in composites, and things which exist together with, or in others, or are comprehended by others, some things are conceived to be precedaneous, but others consequent; and some as essences, but others, as afterwards acceding to essences. For there is a certain coarrangement of them, and incongruity and interval intervenes. But, in the more excellent genera, all things must be conceived in τῳ ειναι , i. e. in merely existing ; and wholes have a precedaneous subsistence, are separate by themselves, and have not their hypostasis from, or in others; so that there is not any thing in them which is accidental. Hence the peculiarity of them is not characterized from accidents.

(101) And in this motion it grows unctuous or fat, and luscious or luxuriant; it increaseth and spreadeth itself, and the highest depth generateth itself very joyfully out of or from the heart of the spirit, just as if it would begin an angelical triumph, and present or shew forth itself infinitely in divine power and form, according to the right of the Deity: and thereby the body getteth its greatest strength and power, and the body coloureth or tinctureth itself with the highest degree, and getteth its true beauty, excellency and virtue.

(4) Which what it finds there active doth attract Into its substance, and becomes one soul, Which lives, and feels, and on itself revolves. And that thou less may wonder at my word, Behold the sun's heat, which becometh wine, Joined to the juice that from the vine distils. Whenever Lachesis has no more thread, It separates from the flesh, and virtually Bears with itself the human and divine; The other faculties are voiceless all; The memory, the intelligence, and the will In action far more vigorous than before. Without a pause it falleth of itself In marvellous way on one shore or the other; There of its roads it first is cognizant. Soon as the place there circumscribeth it, The virtue informative rays round about, As, and as much as, in the living members. And even as the air, when full of rain, By alien rays that are therein reflected, With divers colours shows itself adorned, So there the neighbouring air doth shape itself Into that form which doth impress upon it Virtually the soul that has stood still.

(3) For the participation from the first could not be a thing of this kind, unless the recipient had some mutation. But if that which is participated is received as in another and different thing, this other thing in terrene natures is evil and disorderly. The participation, therefore, becomes the cause of the abundant difference in secondary natures, and also the commixture of material substances with immaterial effluxions; and besides these, another cause is this, that what is imparted in one way, is received in another by terrestrial substances. Thus, for instance, the efflux of Saturn is constipative, but that of Mars is motive; but the passive genesiurgic receptacle in material substances receives the former according to congelation and refrigeration, but the latter according to an inflammation which transcends mediocrity. Do not, therefore, the corruption and privation of symmetry arise from an aberration which is effective of difference, and which is material and passive? Hence the imbecility of material and terrene places, not being able to receive the genuine power and most pure life of the etherial natures, transfers its own passion to first causes. Just as if some one having a diseased body, and not being able to bear the vivific heat of the sun, should falsely dare to say, in consequence of looking to his own maladies, that the sun is not useful to health or life.

(11) But how can the unextended reach over the defined extension of the corporeal? How can it, so, maintain itself as a unity, an identity?

This is a problem often raised and reason calls vehemently for a solution of the difficulties involved. The fact stands abundantly evident, but there is still the need of intellectual satisfaction.

We have, of course, no slight aid to conviction, indeed the very strongest, in the exposition of the character of that principle. It is not like a stone, some vast block lying where it lies, covering the space of its own extension, held within its own limits, having a fixed quantity of mass and of assigned stone-power. It is a First Principle, measureless, not bounded within determined size- such measurement belongs to another order- and therefore it is all-power, nowhere under limit. Being so, it is outside of Time.

Time in its ceaseless onward sliding produces parted interval; Eternity stands in identity, pre-eminent, vaster by unending power than Time with all the vastness of its seeming progress; Time is like a radial line running out apparently to infinity but dependent upon that, its centre, which is the pivot of all its movement; as it goes it tells of that centre, but the centre itself is the unmoving principle of all the movement.

Time stands, thus, in analogy with the principle which holds fast in unchanging identity of essence: but that principle is infinite not only in duration but also in power: this infinity of power must also have its counterpart, a principle springing from that infinite power and dependent upon it; this counterpart will, after its own mode, run a course- corresponding to the course of Time- in keeping with that stationary power which is its greater as being its source: and in this too the source is present throughout the full extension of its lower correspondent.

This secondary of Power, participating as far as it may in that higher, must be identified.

Now the higher power is present integrally but, in the weakness of the recipient material, is not discerned as every point; it is present as an identity everywhere not in the mode of the material triangle- identical though, in many representations, numerically multiple, but in the mode of the immaterial, ideal triangle which is the source of the material figures. If we are asked why the omnipresence of the immaterial triangle does not entail that of the material figure, we answer that not all Matter enters into the participation necessary; Matter accepts various forms and not all Matter is apt for all form; the First Matter, for example, does not lend itself to all but is for the First Kinds first and for the others in due order, though these, too, are omnipresent.