Reply Obj. 2: Mortal sin is incompatible with divinely infused virtue, especially if this be considered in its perfect state. But actual sin, even mortal, is compatible with humanly acquired virtue; because the use of a habit in us is subject to our will, as stated above (Q. 49, A. 3): and one sinful act does not destroy a habit of acquired virtue, since it is not an act but a habit, that is directly contrary to a habit. Wherefore, though man cannot avoid mortal sin without grace, so as never to sin mortally, yet he is not hindered from acquiring a habit of virtue, whereby he may abstain from evil in the majority of cases, and chiefly in matters most opposed to reason. There are also certain mortal sins which man can nowise avoid without grace, those, namely, which are directly opposed to the theological virtues, which are in us through the gift of grace. This, however, will be more fully explained later (Q. 109, A. 4).
Reply Obj. 3: As stated above (A. 1; Q. 51, A. 1), certain seeds or principles of acquired virtue pre-exist in us by nature. These principles are more excellent than the virtues acquired through them: thus the understanding of speculative principles is more excellent than the science of conclusions, and the natural rectitude of the reason is more excellent than the rectification of the appetite which results through the appetite partaking of reason, which rectification belongs to moral virtue. Accordingly human acts, in so far as they proceed from higher principles, can cause acquired human virtues.
^Q. 63 Art. 3: Whether any moral virtues are in us by infusion?
It would seem that no virtues besides the theological virtues are infused in us by God.
Obj. 1: Because God does not do by Himself, save perhaps sometimes miraculously, those things that can be done by second causes; for, as Dionysius says (Coel. Hier. iv), "it is God's rule to bring about extremes through the mean." Now intellectual and moral virtues can be caused in us by our acts, as stated above (A. 2). Therefore it is not reasonable that they should be caused in us by infusion.
Obj. 2: Further, much less superfluity is found in God's works than in the works of nature. Now the theological virtues suffice to direct us to supernatural good. Therefore there are no other supernatural virtues needing to be caused in us by God.
Obj. 3: Further, nature does not employ two means where one suffices: much less does God. But God sowed the seeds of virtue in our souls, according to a gloss on Heb. 1 [*Cf. Jerome on Gal. 1: 15, 16]. Therefore it is unfitting for Him to cause in us other virtues by means of infusion.
On the contrary, It is written (Wis. 8:7): "She teacheth temperance and prudence and justice and fortitude."
I answer that, Effects must needs be proportionate to their causesand principles. Now all virtues, intellectual and moral, that are acquired by our actions, arise from certain natural principles pre-existing in us, as above stated (A. 1; Q. 51, A. 1): instead of which natural principles, God bestows on us the theological virtues, whereby we are directed to a supernatural end, as stated (Q. 62, A. 1). Wherefore we need to receive from God other habits corresponding, in due proportion, to the theological virtues, which habits are to the theological virtues, what the moral and intellectual virtues are to the natural principles of virtue.
Reply Obj. 1: Some moral and intellectual virtues can indeed be caused in us by our actions: but such are not proportionate to the theological virtues. Therefore it was necessary for us to receive, from God immediately, others that are proportionate to these virtues.
Reply Obj. 2: The theological virtues direct us sufficiently to our supernatural end, inchoatively: i.e. to God Himself immediately. But the soul needs further to be perfected by infused virtues in regard to other things, yet in relation to God.
Reply Obj. 3: The power of those naturally instilled principles does not extend beyond the capacity of nature. Consequently man needs in addition to be perfected by other principles in relation to his supernatural end.
^Q. 63 Art. 4: Whether virtue by habituation belongs to the same species as infused virtue?
It would seem that infused virtue does not differ in species from acquired virtue.
Obj. 1: Because acquired and infused virtues, according to what has been said (A. 3), do not differ seemingly, save in relation to the last end. Now human habits and acts are specified, not by their last, but by their proximate end. Therefore the infused moral or intellectual virtue does not differ from the acquired virtue.
Obj. 2: Further, habits are known by their acts. But the act of infused and acquired temperance is the same, viz. to moderate desires of touch. Therefore they do not differ in species.
Obj. 3: Further, acquired and infused virtue differ as that which is wrought by God immediately, from that which is wrought by a creature. But the man whom God made, is of the same species as a man begotten naturally; and the eye which He gave to the man born blind, as one produced by the power of generation. Therefore it seems that acquired and infused virtue belong to the same species.
On the contrary, Any change introduced into the difference expressed in a definition involves a difference of species. But the definition of infused virtue contains the words, "which God works in us without us," as stated above (Q. 55, A. 4). Therefore acquired virtue, to which these words cannot apply, is not of the same species as infused virtue.
I answer that, There is a twofold specific difference among habits. The first, as stated above (Q. 54, A. 2; Q. 56, A. 2; Q. 60, A. 1), is taken from the specific and formal aspects of their objects. Now the object of every virtue is a good considered as in that virtue's proper matter: thus the object of temperance is a good in respect of the pleasures connected with the concupiscence of touch. The formal aspect of this object is from reason which fixes the mean in these concupiscences: while the material element is something on the part of the concupiscences. Now it is evident that the mean that is appointed in such like concupiscences according to the rule of human reason, is seen under a different aspect from the mean which is fixed according to Divine rule. For instance, in the consumption of food, the mean fixed by human reason, is that food should not harm the health of the body, nor hinder the use of reason: whereas, according to the Divine rule, it behooves man to "chastise his body, and bring it into subjection" (1 Cor. 9:27), by abstinence in food, drink and the like. It is therefore evident that infused and acquired temperance differ in species; and the same applies to the other virtues.
The other specific difference among habits is taken from the things to which they are directed: for a man's health and a horse's are not of the same species, on account of the difference between the natures to which their respective healths are directed. In the same sense, the Philosopher says (Polit. iii, 3) that citizens have diverse virtues according as they are well directed to diverse forms of government. In the same way, too, those infused moral virtues, whereby men behave well in respect of their being "fellow-citizens with the saints, and of the household [Douay: 'domestics'] of God" (Eph. 2:19), differ from the acquired virtues, whereby man behaves well in respect of human affairs.
Reply Obj. 1: Infused and acquired virtue differ not only in relation to the ultimate end, but also in relation to their proper objects, as stated.
Reply Obj. 2: Both acquired and infused temperance moderate desires for pleasures of touch, but for different reasons, as stated: wherefore their respective acts are not identical.
Reply Obj. 3: God gave the man born blind an eye for the same act as the act for which other eyes are formed naturally: consequently it was of the same species. It would be the same if God wished to give a man miraculously virtues, such as those that are acquired by acts. But the case is not so in the question before us, as stated.
^Q. 63 OF CERTAIN PROPERTIES OF VIRTUES ^TOC ^Good Habits—That Is, Virtues ^^4. Of the Cause of Virtues We must now consider the properties of virtues: and (1) the mean of virtue Q. 64, (2) the connection between virtues Q. 65, (3) equality of virtues Q. 66, (4) the duration of virtues Q. 67.
QUESTION 64: OF THE MEAN OF VIRTUE ^TOC ^Of Certain Properties of Virtues Under the first head there are four points of inquiry: (1) Whether moral virtue observes the mean?
(2) Whether the mean of moral virtue is the real mean or the rational mean?
(3) Whether the intellectual virtues observe the mean?
(4) Whether the theological virtues do?
Art. 1: Whether moral virtues observe the mean?
It would seem that moral virtue does not observe the mean.
Obj. 1: For the nature of a mean is incompatible with that which is extreme. Now the nature of virtue is to be something extreme; for it is stated in De Coelo i that "virtue is the limit of power." Therefore moral virtue does not observe the mean.
Obj. 2: Further, the maximum is not a mean. Now some moral virtues tend to a maximum: for instance, magnanimity to very great honors, and magnificence to very large expenditure, as stated in Ethic. iv, 2, 3. Therefore not every moral virtue observes the mean.
Obj. 3: Further, if it is essential to a moral virtue to observe the mean, it follows that a moral virtue is not perfected, but the contrary corrupted, through tending to something extreme. Now some moral virtues are perfected by tending to something extreme; thus virginity, which abstains from all sexual pleasure, observes the extreme, and is the most perfect chastity: and to give all to the poor is the most perfect mercy or liberality. Therefore it seems that it is not essential to moral virtue that it should observe the mean.
On the contrary, The Philosopher says (Ethic. ii, 6) that "moral virtue is a habit of choosing the mean."
I answer that, As already explained (Q. 55, A. 3), the nature of virtue is that it should direct man to good. Now moral virtue is properly a perfection of the appetitive part of the soul in regard to some determinate matter: and the measure or rule of the appetitive movement in respect of appetible objects is the reason. But the good of that which is measured or ruled consists in its conformity with its rule: thus the good things made by art is that they follow the rule of art. Consequently, in things of this sort, evil consists in discordance from their rule or measure. Now this may happen either by their exceeding the measure or by their falling short of it; as is clearly the case in all things ruled or measured. Hence it is evident that the good of moral virtue consists in conformity with the rule of reason. Now it is clear that between excess and deficiency the mean is equality or conformity. Therefore it is evident that moral virtue observes the mean.
Reply Obj. 1: Moral virtue derives goodness from the rule of reason, while its matter consists in passions or operations. If therefore we compare moral virtue to reason, then, if we look at that which it has of reason, it holds the position of one extreme, viz. conformity; while excess and defect take the position of the other extreme, viz. deformity. But if we consider moral virtue in respect of its matter, then it holds the position of mean, in so far as it makes the passion conform to the rule of reason. Hence the Philosopher says (Ethic. ii, 6) that "virtue, as to its essence, is a mean state," in so far as the rule of virtue is imposed on its proper matter: "but it is an extreme in reference to the 'best' and the 'excellent,'" viz. as to its conformity with reason.
Reply Obj. 2: In actions and passions the mean and the extremes depend on various circumstances: hence nothing hinders something from being extreme in a particular virtue as to one circumstance, while the same thing is a mean in respect of other circumstances, through being in conformity with reason. This is the case with magnanimity and magnificence. For if we look at the absolute quantity of the respective objects of these virtues, we shall call it an extreme and a maximum: but if we consider the quantity in relation to other circumstances, then it has the character of a mean: since these virtues tend to this maximum in accordance with the rule of reason, i.e. where it is right, when it is right, and for an end that is right. There will be excess, if one tends to this maximum when it is not right, or where it is not right, or for an undue end; and there will be deficiency if one fails to tend thereto where one ought, and when one ought. This agrees with the saying of the Philosopher (Ethic. iv, 3) that the "magnanimous man observes the extreme in quantity, but the mean in the right mode of his action."
Reply Obj. 3: The same is to be said of virginity and poverty as of magnanimity. For virginity abstains from all sexual matters, and poverty from all wealth, for a right end, and in a right manner, i.e. according to God's word, and for the sake of eternal life. But if this be done in an undue manner, i.e. out of unlawful superstition, or again for vainglory, it will be in excess. And if it be not done when it ought to be done, or as it ought to be done, it is a vice by deficiency: for instance, in those who break their vows of virginity or poverty.
^Q. 64 Art. 2: Whether the mean of moral virtue is the real mean, or the rational mean?
It would seem that the mean of moral virtue is not the rational mean, but the real mean.
Obj. 1: For the good of moral virtue consists in its observing the mean. Now, good, as stated in Metaph. ii, text. 8, is in things themselves. Therefore the mean of moral virtue is a real mean.
Obj. 2: Further, the reason is a power of apprehension. But moral virtue does not observe a mean between apprehensions, but rather a mean between operations or passions. Therefore the mean of moral virtue is not the rational, but the real mean.
Obj. 3: Further, a mean that is observed according to arithmetical or geometrical proportion is a real mean. Now such is the mean of justice, as stated in Ethic. v, 3. Therefore the mean of moral virtue is not the rational, but the real mean.
On the contrary, The Philosopher says (Ethic. ii, 6) that "moral virtue observes the mean fixed, in our regard, by reason."
I answer that, The rational mean can be understood in two ways. First, according as the mean is observed in the act itself of reason, as though the very act of reason were made to observe the mean: in this sense, since moral virtue perfects not the act of reason, but the act of the appetitive power, the mean of moral virtue is not the rational mean. Secondly, the mean of reason may be considered as that which the reason puts into some particular matter. In this sense every mean of moral virtue is a rational mean, since, as above stated (A. 1), moral virtue is said to observe the mean, through conformity with right reason.
But it happens sometimes that the rational mean is also the real mean: in which case the mean of moral virtue is the real mean, for instance, in justice. On the other hand, sometimes the rational mean is not the real mean, but is considered in relation to us: and such is the mean in all the other moral virtues. The reason for this is that justice is about operations, which deal with external things, wherein the right has to be established simply and absolutely, as stated above (Q. 60, A. 2): wherefore the rational mean in justice is the same as the real mean, in so far, to wit as justice gives to each one his due, neither more nor less. But the other moral virtues deal with interior passions wherein the right cannot be established in the same way, since men are variously situated in relation to their passions; hence the rectitude of reason has to be established in the passions, with due regard to us, who are moved in respect of the passions.
This suffices for the Replies to the Objections. For the first two arguments take the rational mean as being in the very act of reason, while the third argues from the mean of justice.
^Q. 64 Art. 3: Whether the intellectual virtues observe the mean?
Obj. 1: It would seem that the intellectual virtues do not observe the mean. Because moral virtue observes the mean by conforming to the rule of reason. But the intellectual virtues are in reason itself, so that they seem to have no higher rule. Therefore the intellectual virtues do not observe the mean.
Obj. 2: Further, the mean of moral virtue is fixed by an intellectual virtue: for it is stated in Ethic. ii, 6, that "virtue observes the mean appointed by reason, as a prudent man would appoint it." If therefore intellectual virtue also observe the mean, this mean will have to be appointed for them by another virtue, so that there would be an indefinite series of virtues.
Obj. 3: Further, a mean is, properly speaking, between contraries, as the Philosopher explains (Metaph. x, text. 22, 23). But there seems to be no contrariety in the intellect; since contraries themselves, as they are in the intellect, are not in opposition to one another, but are understood together, as white and black, healthy and sick. Therefore there is no mean in the intellectual virtues.
On the contrary, Art is an intellectual virtue; and yet there is a mean in art (Ethic. ii, 6). Therefore also intellectual virtue observes the mean.
I answer that, The good of anything consists in its observing the mean, by conforming with a rule or measure in respect of which it may happen to be excessive or deficient, as stated above (A. 1). Now intellectual virtue, like moral virtue, is directed to the good, as stated above (Q. 56, A. 3). Hence the good of an intellectual virtue consists in observing the mean, in so far as it is subject to a measure. Now the good of intellectual virtue is the true; in the case of contemplative virtue, it is the true taken absolutely (Ethic. vi, 2); in the case of practical virtue, it is the true in conformity with a right appetite.
Now truth apprehended by our intellect, if we consider it absolutely, is measured by things; since things are the measure of our intellect, as stated in Metaph. x, text. 5; because there is truth in what we think or say, according as the thing is so or not. Accordingly the good of speculative intellectual virtue consists in a certain mean, by way of conformity with things themselves, in so far as the intellect expresses them as being what they are, or as not being what they are not: and it is in this that the nature of truth consists. There will be excess if something false is affirmed, as though something were, which in reality it is not: and there will be deficiency if something is falsely denied, and declared not to be, whereas in reality it is.
The truth of practical intellectual virtue, if we consider it in relation to things, is by way of that which is measured; so that both in practical and in speculative intellectual virtues, the mean consists in conformity with things. But if we consider it in relation to the appetite, it has the character of a rule and measure. Consequently the rectitude of reason is the mean of moral virtue, and also the mean of prudence--of prudence as ruling and measuring, of moral virtue, as ruled and measured by that mean. In like manner the difference between excess and deficiency is to be applied in both cases.
Reply Obj. 1: Intellectual virtues also have their measure, as stated, and they observe the mean according as they conform to that measure.
Reply Obj. 2: There is no need for an indefinite series of virtues: because the measure and rule of intellectual virtue is not another kind of virtue, but things themselves.
Reply Obj. 3: The things themselves that are contrary have no contrariety in the mind, because one is the reason for knowing the other: nevertheless there is in the intellect contrariety of affirmation and negation, which are contraries, as stated at the end of Peri Hermen[e]ias. For though "to be" and "not to be" are not in contrary, but in contradictory opposition to one another, so long as we consider their signification in things themselves, for on the one hand we have "being" and on the other we have simply "non-being"; yet if we refer them to the act of the mind, there is something positive in both cases. Hence "to be" and "not to be" are contradictory: but the opinion stating that "good is good" is contrary to the opinion stating that "good is not good": and between two such contraries intellectual virtue observes the mean.
^Q. 64 Art. 4: Whether the theological virtues observe the mean?
It would seem that theological virtue observes the mean.
Obj. 1: For the good of other virtues consists in their observing the mean. Now the theological virtues surpass the others in goodness. Therefore much more does theological virtue observe the mean.
Obj. 2: Further, the mean of moral virtue depends on the appetite being ruled by reason; while the mean of intellectual virtue consists in the intellect being measured by things. Now theological virtue perfects both intellect and appetite, as stated above (Q. 62, A. 3). Therefore theological virtue also observes the mean.
Obj. 3: Further, hope, which is a theological virtue, is a mean between despair and presumption. Likewise faith holds a middle course between contrary heresies, as Boethius states (De Duab. Natur. vii): thus, by confessing one Person and two natures in Christ, we observe the mean between the heresy of Nestorius, who maintained the existence of two persons and two natures, and the heresy of Eutyches, who held to one person and one nature. Therefore theological virtue observes the mean.
On the contrary, Wherever virtue observes the mean it is possible to sin by excess as well as by deficiency. But there is no sinning by excess against God, Who is the object of theological virtue: for it is written (Ecclus. 43:33): "Blessing the Lord, exalt Him as much as you can: for He is above all praise." Therefore theological virtue does not observe the mean.
I answer that, As stated above (A. 1), the mean of virtue depends on conformity with virtue's rule or measure, in so far as one may exceed or fall short of that rule. Now the measure of theological virtue may be twofold. One is taken from the very nature of virtue, and thus the measure and rule of theological virtue is God Himself: because our faith is ruled according to Divine truth; charity, according to His goodness; hope, according to the immensity of His omnipotence and loving kindness. This measure surpasses all human power: so that never can we love God as much as He ought to be loved, nor believe and hope in Him as much as we should. Much less therefore can there be excess in such things. Accordingly the good of such virtues does not consist in a mean, but increases the more we approach to the summit.
The other rule or measure of theological virtue is by comparison with us: for although we cannot be borne towards God as much as we ought, yet we should approach to Him by believing, hoping and loving, according to the measure of our condition. Consequently it is possible to find a mean and extremes in theological virtue, accidentally and in reference to us.
Reply Obj. 1: The good of intellectual and moral virtues consists in a mean of reason by conformity with a measure that may be exceeded: whereas this is not so in the case of theological virtue, considered in itself, as stated above.
Reply Obj. 2: Moral and intellectual virtues perfect our intellect and appetite in relation to a created measure and rule; whereas the theological virtues perfect them in relation to an uncreated rule and measure. Wherefore the comparison fails.
Reply Obj. 3: Hope observes the mean between presumption and despair, in relation to us, in so far, to wit, as a man is said to be presumptuous, through hoping to receive from God a good in excess of his condition; or to despair through failing to hope for that which according to his condition he might hope for. But there can be no excess of hope in comparison with God, Whose goodness is infinite. In like manner faith holds a middle course between contrary heresies, not by comparison with its object, which is God, in Whom we cannot believe too much; but in so far as human opinion itself takes a middle position between contrary opinions, as was explained above.
^Q. 64 QUESTION 65: OF THE CONNECTION OF VIRTUES ^TOC ^Of Certain Properties of Virtues We must now consider the connection of virtues: under which head there are five points of inquiry: (1) Whether the moral virtues are connected with one another?
(2) Whether the moral virtues can be without charity?
(3) Whether charity can be without them?
(4) Whether faith and hope can be without charity?
(5) Whether charity can be without them?
Art. 1: Whether the moral virtues are connected with one another?
It would seem that the moral virtues are not connected with one another.
Obj. 1: Because moral virtues are sometimes caused by the exercise of acts, as is proved in Ethic. ii, 1, 2. But man can exercise himself in the acts of one virtue, without exercising himself in the acts of some other virtue. Therefore it is possible to have one moral virtue without another.
Obj. 2: Further, magnificence and magnanimity are moral virtues. Now a man may have other moral virtues without having magnificence or magnanimity: for the Philosopher says (Ethic. iv, 2, 3) that "a poor man cannot be magnificent," and yet he may have other virtues; and (Ethic. iv) that "he who is worthy of small things, and so accounts his worth, is modest, but not magnanimous." Therefore the moral virtues are not connected with one another.
Obj. 3: Further, as the moral virtues perfect the appetitive part of the soul, so do the intellectual virtues perfect the intellective part. But the intellectual virtues are not mutually connected: since we may have one science, without having another. Neither, therefore, are the moral virtues connected with one another.
Obj. 4: Further, if the moral virtues are mutually connected, this can only be because they are united together in prudence. But this does not suffice to connect the moral virtues together. For, seemingly, one may be prudent about things to be done in relation to one virtue, without being prudent in those that concern another virtue: even as one may have the art of making certain things, without the art of making certain others. Now prudence is right reason about things to be done. Therefore the moral virtues are not necessarily connected with one another.
On the contrary, Ambrose says on Luke 6:20: "The virtues are connected and linked together, so that whoever has one, is seen to have several": and Augustine says (De Trin. vi, 4) that "the virtues that reside in the human mind are quite inseparable from one another": and Gregory says (Moral. xxii, 1) that "one virtue without the other is either of no account whatever, or very imperfect": and Cicero says (Quaest. Tusc. ii): "If you confess to not having one particular virtue, it must needs be that you have none at all."
I answer that, Moral virtue may be considered either as perfect or as imperfect. An imperfect moral virtue, temperance for instance, or fortitude, is nothing but an inclination in us to do some kind of good deed, whether such inclination be in us by nature or by habituation. If we take the moral virtues in this way, they are not connected: since we find men who, by natural temperament or by being accustomed, are prompt in doing deeds of liberality, but are not prompt in doing deeds of chastity.
But the perfect moral virtue is a habit that inclines us to do a good deed well; and if we take moral virtues in this way, we must say that they are connected, as nearly as all are agreed in saying. For this two reasons are given, corresponding to the different ways of assigning the distinction of the cardinal virtues. For, as we stated above (Q. 61, AA. 3, 4), some distinguish them according to certain general properties of the virtues: for instance, by saying that discretion belongs to prudence, rectitude to justice, moderation to temperance, and strength of mind to fortitude, in whatever matter we consider these properties to be. In this way the reason for the connection is evident: for strength of mind is not commended as virtuous, if it be without moderation or rectitude or discretion: and so forth. This, too, is the reason assigned for the connection by Gregory, who says (Moral. xxii, 1) that "a virtue cannot be perfect" as a virtue, "if isolated from the others: for there can be no true prudence without temperance, justice and fortitude": and he continues to speak in like manner of the other virtues (cf. Q. 61, A. 4, Obj. 1). Augustine also gives the same reason (De Trin. vi, 4).
Others, however, differentiate these virtues in respect of their matters, and it is in this way that Aristotle assigns the reason for their connection (Ethic. vi, 13). Because, as stated above (Q. 58, A. 4), no moral virtue can be without prudence; since it is proper to moral virtue to make a right choice, for it is an elective habit. Now right choice requires not only the inclination to a due end, which inclination is the direct outcome of moral virtue, but also correct choice of things conducive to the end, which choice is made by prudence, that counsels, judges, and commands in those things that are directed to the end. In like manner one cannot have prudence unless one has the moral virtues: since prudence is "right reason about things to be done," and the starting point of reason is the end of the thing to be done, to which end man is rightly disposed by moral virtue. Hence, just as we cannot have speculative science unless we have the understanding of the principles, so neither can we have prudence without the moral virtues: and from this it follows clearly that the moral virtues are connected with one another.
Reply Obj. 1: Some moral virtues perfect man as regards his general state, in other words, with regard to those things which have to be done in every kind of human life. Hence man needs to exercise himself at the same time in the matters of all moral virtues. And if he exercise himself, by good deeds, in all such matters, he will acquire the habits of all the moral virtues. But if he exercise himself by good deeds in regard to one matter, but not in regard to another, for instance, by behaving well in matters of anger, but not in matters of concupiscence; he will indeed acquire a certain habit of restraining his anger; but this habit will lack the nature of virtue, through the absence of prudence, which is wanting in matters of concupiscence. In the same way, natural inclinations fail to have the complete character of virtue, if prudence be lacking.
But there are some moral virtues which perfect man with regard to some eminent state, such as magnificence and magnanimity; and since it does not happen to all in common to be exercised in the matter of such virtues, it is possible for a man to have the other moral virtues, without actually having the habits of these virtues—provided we speak of acquired virtue. Nevertheless, when once a man has acquired those other virtues he possesses these in proximate potentiality. Because when, by practice, a man has acquired liberality in small gifts and expenditure, if he were to come in for a large sum of money, he would acquire the habit of magnificence with but little practice: even as a geometrician, by dint of little study, acquires scientific knowledge about some conclusion which had never been presented to his mind before. Now we speak of having a thing when we are on the point of having it, according to the saying of the Philosopher (Phys. ii, text. 56): "That which is scarcely lacking is not lacking at all."
This suffices for the Reply to the Second Objection.
Reply Obj. 3: The intellectual virtues are about divers matters having no relation to one another, as is clearly the case with the various sciences and arts. Hence we do not observe in them the connection that is to be found among the moral virtues, which are about passions and operations, that are clearly related to one another. For all the passions have their rise in certain initial passions, viz. love and hatred, and terminate in certain others, viz. pleasure and sorrow. In like manner all the operations that are the matter of moral virtue are related to one another, and to the passions. Hence the whole matter of moral virtues falls under the one rule of prudence.
Nevertheless, all intelligible things are related to first principles. And in this way, all the intellectual virtues depend on the understanding of principles; even as prudence depends on the moral virtues, as stated. On the other hand, the universal principles which are the object of the virtue of understanding of principles, do not depend on the conclusions, which are the objects of the other intellectual virtues, as do the moral virtues depend on prudence, because the appetite, in a fashion, moves the reason, and the reason the appetite, as stated above (Q. 9, A. 1; Q. 58, A. 5, ad 1).