(2) Since, however, of the parts of the soul, one is the leader, but the other follows, and the virtues and the vices subsist about these, and in these; it is evident that with respect to the virtues also, some are leaders, others are followers, and others, are composed from these. And the leaders, indeed, are such as prudence; but the followers are such as fortitude and temperance; and the composites from these, are such as justice. The passions, however, are the matter of virtue; for the virtues subsist about, and in these. But of the passions, one is voluntary, but another is involuntary. And the voluntary, indeed, is pleasure; but the involuntary is pain. Men also, who have the political virtues, give intension and remission to these, co-harmonizing the other parts of the soul, to that part which possesses reason.

But the boundary of this co-adaptation, is for intellect not to be prevented from accomplishing its proper work, either by indigence, or excess. For that which is less excellent, is co-arranged for the sake of that which is more excellent. Thus in the world, every part that is always passive, subsists for the sake of that which is always moved. And in the conjunction of animals, the female subsists for the sake of the male. For the latter sows, generating a soul; but the former alone imparts matter to that which is generated. In the soul however, the irrational subsists for the sake of the rational part. For anger and desire are co-arranged in subserviency to the first part of the soul; the former as a certain satellite, and guardian of the body; but the latter as a dispensator and provident curator of necessary wants.

But intellect being established in the highest summit of the body, and having a prospect in that which is on all sides splendid and transparent, investigates the wisdom of [real] beings. And this is the work of it according to nature, viz. having investigated, and obtained the possession [of truth] to follow those beings who are more excellent and more honorable than itself. For the knowledge of things divine and most honorable, is the principle, cause, and rule of human blessedness .

(3) Since however, the virtue of manners is conversant with the passions, but of the passions pleasure and pain are supreme, it is evident that virtue does not consist in extirpating the passions of the soul, pleasure and pain, but in co-harmonizing them. For neither does health, which is a certain apt mixture of the powers of the body, consist in expelling the cold and the hot, the moist and the dry; but in these being [appropriately] mingled together. For it is as it were, a certain symmetry of these. Thus too, in music, concord does not consist in expelling the sharp and the flat; but when these are co-harmonized, then concord is produced, and dissonance is exterminated. In a similar manner, the hot and the cold, the moist and the dry, being harmoniously mingled together, health is produced, and disease destroyed.

But when anger, and desire are co-harmonized, the vices and the [other] passions are extirpated, and the virtues and manners are ingenerated. Deliberate choice however, in beautiful conduct, is the greatest peculiarity of the virtue of manners. For it is possible to use reason and power without virtue; but it is not possible to use deliberate choice without it. For deliberate choice indicates the dignity of manners. Hence also, the reasoning power subduing by force anger and desire, produces continence and endurance. And again, when the reasoning power is violently dethroned by the irrational parts, then incontinence and effeminacy are produced. Such dispositions however, of the soul as these, are half-perfect virtues, and half-perfect vices. For the reasoning power of the soul is [according to its natural subsistence] in a healthy, but the irrational parts are in a diseased condition.

And so far indeed, as anger and desire are governed and led by the rational part of the soul, continence and endurance become virtues; but so far as this is effected by violence, and not voluntarily, they become vices. For it is necessary that virtue should perform such things as are fit, not with pain, but with pleasure. Again, so far as anger and desire govern the reasoning power, effeminacy and incontinence are produced, which are certain vices. But so far, as they gratify the passions with pain, knowing that they are erroneous, in consequence of the eye of the soul being sane,—so far as this is the case, they are not vices. Hence, it is evident that virtue must necessarily perform what is fit voluntarily; that which is involuntary indeed, not being without pain and fear; and that which is voluntary, not subsisting without pleasure and delight.

(1) The order of the soul subsists in such a way, that one part of it is the reasoning power, another is anger, and another is desire. And the reasoning power, indeed, has dominion over knowledge; anger over impetus; and desire intrepidly rules over the appetitions of the soul. When therefore these three parts pass into one, and exhibit one appropriate composition, then virtue and concord are produced in the soul. But when they are divulsed from each other by sedition, then vice and discord are produced in the soul. It is necessary, however, that virtue should have these three things, viz. reason, power, and deliberate choice. The virtue, therefore, of the reasoning power of the soul is prudence; for it is a habit of judging and contemplating.

But the virtue of the irascible part, is fortitude; for it is a habit of resisting, and enduring things of a dreadful nature. And the virtue of the epithymetic or appetitive part is temperance; for it is a moderation and detention of the pleasures which arise through the body. But the virtue of the whole soul is justice. For men indeed become bad, either through vice, or through incontinence, or through a natural ferocity. But they injure each other, either through gain, or through pleasure, or through ambition. Vice, therefore, more appropriately belongs to the reasoning part of the soul. For prudence indeed is similar to art; but vice to pernicious art. For it invents contrivances for the purpose of acting unjustly.

But incontinence rather pertains to the appetitive part of the soul. For continence consists in subduing, and incontinence in not subduing pleasures. And ferocity pertains to the irascible part of the soul. For when some one, through acting ill from desire, is gratified not as a man should be, but as a wild beast, then a thing of this kind is denominated ferocity. The effects also of these dispositions are consequent to the things for the sake of which they are performed. For avarice is consequent to vice; but vice is consequent to the reasoning part of the soul. And ambition, indeed, follows from the irascible part; and this becoming excessive, generates ferocity. Again, pleasure pertains to the appetitive part; but this being sought after more vehemently, generates incontinence. Hence, since the acting unjustly is produced from so many causes, it is evident that acting justly is effected through an equal number of causes. For virtue, indeed, is naturally beneficent and profitable; but vice is productive of evil, and is noxious.

(5) Universally therefore, virtue is a certain co-adaptation of the irrational parts of the soul to the rational part. Virtue however, is produced through pleasure and pain receiving the boundary of that which is fit. For true virtue is nothing else than the habit of that which is fit. But the fit, or the decorous, is that which ought to be; and the unfit, or indecorous, is that which ought not to be. Of the indecorous however, there are two species, viz. excess and defect. And excess indeed, is more than is fit; but defect is less than is fit. But since the fit is that which ought to be, it is both a summit and a middle. It is a summit indeed, because it neither requires ablation, nor addition; but it is a middle, because it subsists between excess and defect.

The fit, however, and the unfit, are to each other as the equal and the unequal that which is arranged, and that which is without arrangement; and both the two former and the two latter are finite and infinite. On this account, the parts of the unequal are referred to the middle, but not to each other. For the angle is called obtuse which is greater than a right angle; but that is called acute, which is less than a right angle. The right line also [in a circle] is greater, which surpasses that which is drawn from the center. And the day is longer indeed, which exceeds that of the equinox. Diseases, likewise, of the body are generated, through the body becoming more hot or more cold [than is proper].

For that which is more hot [than is fit] exceeds moderation; and that which is more cold [than is fit] is below mediocrity. The soul also, and such things as pertain to it, have this disposition and analogy. For audacity indeed, is an excess of the decorous in the endurance of things of a dreadful nature; but timidity is a deficiency of the, decorous. And prodigality is an excess of what is fit in the expenditure of money; but illiberality is a deficiency in this. And rage indeed, is an excess of the decorous in the impulse of the irascible part of the soul; but insensibility is a deficiency of this. The same reasoning likewise applies to the opposition of the other dispositions of the soul.

It is necessary however, that virtue, since it is a habit of the decorous, and a medium of the passions, should neither be [wholly] impassive, nor immoderately passive. For impassivity indeed, causes the soul to be unimpelled, and to be without an enthusiastic tendency to the beautiful in conduct; but immoderate passivity causes it to be full of perturbation, and inconsiderate. It is necessary therefore, that passion should so present itself to the view, in virtue, as shadow and outline in a picture. For the animated and the delicate, and that which imitates the truth, in conjunction with goodness of colors, are especially effected in a picture through these [i. e. through shadow and outline]. But the passions of the soul are animated by the natural incitation and enthusiasm of virtue.

For virtue is generated from the passions, and when generated, again subsists together with them; just as that which is well harmonized consists of the sharp and the flat, that which is well mingled consists of the hot and the cold, and that which is in equilibrium derives its equality of weight from the heavy and the light. It is not therefore necessary to take away the passions of the soul; for neither would this be profitable; but it is requisite that they should be co-harmonized with the rational part, in conjunction with fitness and mediocrity.

(2) Let us begin with virtue and vice in the Soul. What has really occurred when, as we say, vice is present? In speaking of extirpating evil and implanting goodness, of introducing order and beauty to replace a former ugliness, we talk in terms of real things in the Soul.

Now when we make virtue a harmony, and vice a breach of harmony, we accept an opinion approved by the ancients; and the theory helps us decidedly to our solution. For if virtue is simply a natural concordance among the phases of the Soul, and vice simply a discord, then there is no further question of any foreign presence; harmony would be the result of every distinct phase or faculty joining in, true to itself; discord would mean that not all chimed in at their best and truest. Consider, for example, the performers in a choral dance; they sing together though each one has his particular part, and sometimes one voice is heard while the others are silent; and each brings to the chorus something of his own; it is not enough that all lift their voices together; each must sing, choicely, his own part to the music set for him. Exactly so in the case of the Soul; there will be harmony when each faculty performs its appropriate part.

Yes: but this very harmony constituting the virtue of the Soul must depend upon a previous virtue, that of each several faculty within itself; and before there can be the vice of discord there must be the vice of the single parts, and these can be bad only by the actual presence of vice as they can be good only by the presence of virtue. It is true that no presence is affirmed when vice is identified with ignorance in the reasoning faculty of the Soul; ignorance is not a positive thing; but in the presence of false judgements- the main cause of vice- must it not be admitted that something positive has entered into the Soul, something perverting the reasoning faculty? So, the initiative faculty; is it not, itself, altered as one varies between timidity and boldness? And the desiring faculty, similarly, as it runs wild or accepts control?

Our teaching is that when the particular faculty is sound it performs the reasonable act of its essential nature, obeying the reasoning faculty in it which derives from the Intellectual Principle and communicates to the rest. And this following of reason is not the acceptance of an imposed shape; it is like using the eyes; the Soul sees by its act, that of looking towards reason. The faculty of sight in the performance of its act is essentially what it was when it lay latent; its act is not a change in it, but simply its entering into the relation that belongs to its essential character; it knows- that is, sees- without suffering any change: so, precisely, the reasoning phase of the Soul stands towards the Intellectual Principle; this it sees by its very essence; this vision is its knowing faculty; it takes in no stamp, no impression; all that enters it is the object of vision- possessed, once more, without possession; it possesses by the fact of knowing but "without possession" in the sense that there is no incorporation of anything left behind by the object of vision, like the impression of the seal on sealing-wax.

And note that we do not appeal to stored-up impressions to account for memory: we think of the mind awakening its powers in such a way as to possess something not present to it.

Very good: but is it not different before and after acquiring the memory?

Be it so; but it has suffered no change- unless we are to think of the mere progress from latency to actuality as change- nothing has been introduced into the mind; it has simply achieved the Act dictated by its nature.

It is universally true that the characteristic Act of immaterial entities is performed without any change in them- otherwise they would at last be worn away- theirs is the Act of the unmoving; where act means suffering change, there is Matter: an immaterial Being would have no ground of permanence if its very Act changed it.

Thus in the case of Sight, the seeing faculty is in act but the material organ alone suffers change: judgements are similar to visual experiences.

But how explain the alternation of timidity and daring in the initiative faculty?

Timidity would come by the failure to look towards the Reason-Principle or by looking towards some inferior phase of it or by some defect in the organs of action- some lack or flaw in the bodily equipment- or by outside prevention of the natural act or by the mere absence of adequate stimulus: boldness would arise from the reverse conditions: neither implies any change, or even any experience, in the Soul.

So with the faculty of desire: what we call loose living is caused by its acting unaccompanied; it has done all of itself; the other faculties, whose business it is to make their presence felt in control and to point the right way, have lain in abeyance; the Seer in the Soul was occupied elsewhere, for, though not always at least sometimes, it has leisure for a certain degree of contemplation of other concerns.

Often, moreover, the vice of the desiring faculty will be merely some ill condition of the body, and its virtue, bodily soundness; thus there would again be no question of anything imported into the Soul.