2 . The operation of the instrument , however, is twofold; one for the production of sound, the other for the reception of concepts from without; and the one faculty does not blend with the other, but abides in the operation for which it was appointed by nature, not interfering with its neighbour either by the sense of hearing undertaking to speak, or by the speech undertaking to hear; for the latter is always uttering something, while the ear, as Solomon somewhere says, is not filled with continual hearing .
3. That point as to our internal faculties which seems to me to be even in a special degree matter for wonder, is this:-what is the extent of that inner receptacle into which flows everything that is poured in by our hearing? who are the recorders of the sayings that are brought in by it? what sort of storehouses are there for the concepts that are being put in by our hearing? and how is it, that when many of them, of varied kinds, are pressing one upon another, there arises no confusion and error in the relative position of the things that are laid up there? And one may have the like feeling of wonder also with regard to the operation of sight; for by it also in like manner the mind apprehends those things which are external to the body, and draws to itself the images of phenomena, marking in itself the impressions of the things which are seen.
4. And just as if there were some extensive city receiving all comers by different entrances, all will not congregate at any particular place, but some will go to the market, some to the houses, others to the churches, or the streets, or lanes, or the theatres, each according to his own inclination,-some such city of our mind I seem to discern established in us, which the different entrances through the senses keep filling, while the mind, distinguishing and examining each of the things that enters, ranks them in their proper departments of knowledge.
5. And as, to follow the illustration of the city, it may often be that those who are of the same family and kindred do not enter by the same gate, coming in by different entrances, as it may happen, but are none the less, when they come within the circuit of the wall, brought together again, being on close terms with each other (and one may find the contrary happen; for those who are strangers and mutually unknown often take one entrance to the city, yet their community of entrance does not bind them together; for even when they are within they can be separated to join their own kindred); something of the same kind I seem to discern in the spacious territory of our mind; for often the knowledge which we gather from the different organs of sense is one, as the same object is divided into several parts in relation to the senses; and again, on the contrary, we may learn from some one sense many and varied things which have no affinity one with another.
6. For instance-for it is better to make our argument clear by illustration-let us suppose that we are making some inquiry into the property of tastes-what is sweet to the sense, and what is to be avoided by tasters. We find, then, by experience, both the bitterness of gall and the pleasant character of the quality of honey; but when these facts are known, the knowledge is one which is given to us (the same thing being introduced to our understanding in several ways) by taste, smell, hearing, and often by touch and sight. For when one sees honey, and hears its name, and receives it by taste, and recognizes its odour by smell, and tests it by touch, he recognizes the same thing by means of each of his senses.
7. On the other hand we get varied and multiform information by some one sense, for as hearing receives all sorts of sounds, and our visual perception exercises its operation by beholding things of different kinds-for it lights alike on black and white, and all things that are distinguished by contrariety of colour,-so with taste, with smell, with perception by touch; each implants in us by means of its own perceptive power the knowledge of things of every kind.
XI. That the Nature of Mind is Invisible
1. What then is, in its own nature, this mind that distributes itself into faculties of sensation, and duly receives, by means of each, the knowledge of things? That it is something else besides the senses, I suppose no reasonable man doubts; for if it were identical with sense, it would reduce the proper character of the operations carried on by sense to one, on the the ground that it is itself simple, and that in what is simple no diversity is to be found. Now however, as all agree that touch is one thing and smell another, and as the rest of the senses are in like manner so situated with regard to each other as to exclude intercommunion or mixture, we must surely suppose, since the mind is duly present in each case, that it is something else besides the sensitive nature, so that no variation may attach to a thing intelligible.
2. "Who hath known the mind of the Lord ?" the apostle asks; and I ask further, who has understood his own mind? Let those tell us who consider the nature of God to be within their comprehension, whether they understand themselves-if they know the nature of their own mind. "It is manifold and much compounded." How then can that which is intelligible be composite? or what is the mode of mixture of things that differ in kind? Or, "It is simple, and incomposite." How then is it dispersed into the manifold divisions of the senses? how is there diversity in unity? how is unity maintained in diversity?
3. But I find the solution of these difficulties by recourse to the very utterance of God; for He says, "Let us make man in our image, after our likeness ." The image is properly an image so long as it fails in none of those attributes which we perceive in the archetype; but where it falls from its resemblance to the prototype it ceases in that respect to be an image; therefore, since one of the attributes we contemplate in the Divine nature is incomprehensibility of essence, it is clearly necessary that in this point the image should be able to show its imitation of the archetype.
4. For if, while the archetype transcends comprehension, the nature of the image were comprehended, the contrary character of the attributes we behold in them would prove the defect of the image; but since the nature of our mind, which is the likeness of the Creator evades our knowledge, it has an accurate resemblance to the superior nature, figuring by its own unknowableness the incomprehensible Nature.
XII. An Examination of the Question Where the Ruling Principle is to Be Considered to Reside; Wherein Also is a Discussion of Tears and Laughter, and a Physiological Speculation as to the Inter-Relation of Matter, Nature, and Minds.
1. Let there be an end, then, of all the vain and conjectural discussion of those who confine the intelligible energy to certain bodily organs; of whom some lay it down that the ruling principle is in the heart, while others say that the mind resides in the brain, strengthening such opinions by some plausible superficialities. For he who ascribes the principal authority to the heart makes its local position evidence of his argument (because it seems that it somehow occupies the middle position in the body ), on the ground that the motion of the will is easily distributed from the centre to the whole body, and so proceeds to operation; and he makes the troublesome and passionate disposition of man a testimony for his argument, because such affections seem to move this part sympathetically. Those, on the other hand, who consecrate the brain to reasoning, say that the head has been built by nature as a kind of citadel of the whole body, and that in it the mind dwells like a king, with a bodyguard of senses surrounding it like messengers and shield-bearers. And these find a sign of their opinion in the fact that the reasoning of those who have suffered some injury to the membrane of the brain is abnormally distorted, and that those whose heads are heavy with intoxication ignore what is seemly.
2. Each of those who uphold these views puts forward some reasons of a more physical character on behalf of his opinion concerning the ruling principle. One declares that the motion which proceeds from the understanding is in some way akin to the nature of fire, because fire and the understanding are alike in perpetual motion; and since heat is allowed to have its source in the region of the heart, he says on this ground that the motion of mind is compounded with the mobility of heat, and asserts that the heart, in which heat is enclosed, is the receptacle of the intelligent nature. The other declares that the cerebral membrane (for so they call the tissue that surrounds the brain) is as it were a foundation or root of all the senses, and hereby makes good his own argument, on the ground that the intellectual energy cannot have its seat save in that part where the ear, connected with it, comes into concussion with the sounds that fall upon it, and the sight (which naturally belongs to the hollow of the place where the eyes are situated) makes its internal representation by means of the images that fall upon the pupils, while the qualities of scents are discerned in it by being drawn in through the nose, and the sense of taste is tried by the test of the cerebral membrane, which sends down from itself, by the veterbrae of the neck, sensitive nerve-processes to the isthmoidal passage, and unites them with the muscles there.
3. I admit it to be true that the intellectual part of the soul is often disturbed by prevalence of passions; and that the reason is blunted by some bodily accident so as to hinder its natural operation; and that the heart is a sort of source of the fiery element in the body, and is moved in correspondence with the impulses of passion; and moreover, in addition to this, I do not reject (as I hear very much the same account from those who spend their time on anatomical researches) the statement that the cerebral membrane (according to the theory of those who take such a physiological view), enfolding in itself the brain, and steeped in the vapours that issue from it, forms a foundation for the senses; yet I do not hold this for a proof that the incorporeal nature is bounded by any limits of place.
4. Certainly we are aware that mental aberrations do not arise from heaviness of head alone, but skilled physicians declare that our intellect is also weakened by the membranes that underlie the sides being affected by disease, when they call the disease frenzy, since the name given to those membranes is fre/nej . And the sensation resulting from sorrow is mistakenly supposed to arise at the heart; for while it is not the heart, but the entrance of the belly that is pained, people ignorantly refer the affection to the heart. Those, however, who have carefully studied the affections in question give some such account as follows:-by a compression and closing of the pores, which naturally takes place over the whole body in a condition of grief, everything that meets a hindrance in its passage is driven to the cavities in the interior of the body, and hence also (as the respiratory organs too are pressed by what surrounds them), the drawing of breath often becomes more violent under the influence of nature endeavouring to widen what has been contracted, so as to open out the compressed passages; and such breathing we consider a symptom of grief and call it a groan or a shriek. That, moreover, which appears to oppress the region of the heart is a painful affection, not of the heart, but of the entrance of the stomach, and occurs from the same cause (I mean, that of the compression of the pores), as the vessel that contains the bile, contracting, pours that bitter and pungent juice upon the entrance of the stomach; and a proof of this is that the complexion of those in grief becomes sallow and jaundiced, as the bile pours its own juice into the veins by reason of excessive pressure.
5. Furthermore, the opposite affection, that, I mean, of mirth and laughter, contributes to establish the argument; for the pores of the body, in the case of those who are dissolved in mirth by hearing something pleasant, are also somehow dissolved and relaxed. Just as in the former case the slight and insensible exhalations of the pores are checked by grief, and, as they compress the internal arrangement of the higher viscera, drive up towards the head and the cerebral membrane the humid vapour which, being retained in excess by the cavities of the brain, is driven out by the pores at its base , while the closing of the eyelids expels the moisture in the form of drops (and the drop is called a tear), so I would have you think that when the pores, as a result of the contrary condition, are unusually widened, some air is drawn in through them into the interior, and thence again expelled by nature through the passage of the mouth, while all the viscera (and especially, as they say, the liver) join in expelling this air by a certain agitation and throbbing motion; whence it comes that nature, contriving to give facility for the exit of the air, widens the passage of the mouth, extending the cheeks on either side round about the breath; and the result is called laughter.
6. We must not, then, on this account ascribe the ruling principle any more to the liver than we must think, because of the heatedstate of the blood about the heart in wrathful dispositions, that the seat of the mind is in the heart; but we must refer these matters to the character of our bodily organization, and consider that the mind is equally in contact with each of the parts according to a kind of combination which is indescribable.
7. Even if any should allege to us on this point the Scripture which claims the ruling principle for the heart, we shall not receive the statement without examination; for he who makes mention of the heart speaks also of the reins, when he says, "God trieth the hearts and reins" ; so that they must either confine the intellectual principle to the two combined or to neither.
8. And although I am aware that the intellectual energies are blunted, or even made altogether ineffective in a certain condition of the body, I do not hold this a sufficient evidence for limiting the faculty of the mind by any particular place, so that it should be forced out of its proper amount of free space by any inflammations that may arise in the neighbouring parts of the body (for such an opinion is a corporeal one, that when the receptacle is already occupied by something placed in it, nothing else can find place there); for the intelligible nature neither dwells in the empty spaces of bodies, nor is extruded by encroachments of the flesh; but since the whole body is made like some musical instrument, just as it often happens in the case of those who know how to play, but are unable, because the unfitness of the instrument does not admit of their art, to show their skill (for that which is destroyed by time, or broken by a fall, or rendered useless by rust or decay, is mute and inefficient, even if it be breathed upon by one who may be an excellent artist in flute-playing); so too the mind, passing over the whole instrument, and touching each of the parts in a mode corresponding to its intellectual activities, according to its nature, produces its proper effect on those parts which are in a natural condition, but remains inoperative and ineffective upon those which are unable to admit the movement of its art; for the mind is somehow naturally adapted to be in close relation with that which is in a natural condition, but to be alien from that which is removed from nature.
9. And here, I think there is a view of the matter more close to nature, by which we may learn something of the more refined doctrines. For since the most beautiful and supreme good of all is the Divinity Itself, to which incline all things that have a tendency towards what is beautiful and good , we therefore say that the mind, as being in the image of the most beautiful, itself also remains in beauty and goodness so long as it partakes as far as is possible in its likeness to the archetype; but if it were at all to depart from this it is deprived of that beauty in which it was. And as we said that the mind was adorned by the likeness of the archetypal beauty, being formed as though it were a mirror to receive the figure of that which it expresses, we consider that the nature which is governed by it is attached to the mind in the same relation, and that it too is adorned by the beauty that the mind gives, being, so to say, a mirror of the mirror; and that by it is swayed and sustained the material element of that existence in which the nature is contemplated.
10. Thus so long as one keeps in touch with the other, the communication of the true beauty extends proportionally through the whole series, beautifying by the superior nature that which comes next to it; but when there is any interruption of this beneficent connection, or when, on the contrary, the superior comes to follow the inferior, then is displayed the misshapen character of matter, when it is isolated from nature (for in itself matter is a thing without form or structure), and by its shapelessness is also destroyed that beauty of nature with which it is adorned through the mind; and so the transmission of the ugliness of matter reaches through the nature to the mind itself, so that the image of God is no longer seen in the figure expressed by that which was moulded according to it; for the mind, setting the idea of good like a mirror behind the back, turns off the incident rays of the effulgence of the good, and it receives into itself the impress of the shapelessness of matter.
11. And in this way is brought about the genesis of evil, arising through the withdrawal of that which is beautiful and good. Now all is beautiful and good that is closely related to the First Good; but that which departs from its relation and likeness to this is certainly devoid of beauty and goodness. If, then, according to the statement we have been considering, that which is truly good is one, and the mind itself also has its power of being beautiful and good, in so far as it is in the image of the good and beautiful, and the nature, which is sustained by the mind, has the like power, in so far as it is an image of the image, it is hereby shown that our material part holds together, and is upheld when it is controlled by nature; and on the other hand is dissolved and disorganized when it is separated from that which upholds and sustains it, and is dissevered from its conjunction with beauty and goodness.
12. Now such a condition as this does not arise except when there takes place an overturning of nature to the opposite state, in which the desire has no inclination for beauty and goodness, but for that which is in need of the adorning element; for it must needs be that that which is made like to matter, destitute as matter is of form of its own, should be assimilated to it in respect of the absence alike of form and of beauty.
13. We have, however, discussed these points in passing, as following on our argument, since they were introduced by our speculation on the point before us; for the subject of enquiry was, whether the intellectual faculty has its seat in any of the parts of us, or extends equally over them all; for as for those who shut up the mind locally in parts of the body, and who advance for the establishment of this opinion of theirs the fact that the reason has not free course in the case of those whose cerebral membranes are in an unnatural condition, our argument showed that in respect of every part of the compound nature of man, whereby every man has some natural operation, the power of the soul remains equally ineffective if the part does not continue in its natural condition. And thus there came into our argument, following out this line of thought, the view we have just stated, by which we learn that in the compound nature of man the mind is governed by God, and that by it is governed our material life, provided the latter remains in its natural state, but if it is perverted from nature it is alienated also from that operation which is carried on by the mind.