Summa Th. I-II EN Qu.7 a.3
143
Objection: 1. It would seem that the circumstances are not properly set forth in Ethic. iii, 1. For a circumstance of an act is described as something outside the act. Now time and place answer to this description. Therefore there are only two circumstances, to wit, "when" and "where."
2. Further, we judge from the circumstances whether a thing is well or ill done. But this belongs to the mode of an act. Therefore all the circumstances are included under one, which is the "mode of acting."
3. Further, circumstances are not part of the substance of an act. But the causes of an act seem to belong to its substance. Therefore no circumstance should be taken from the cause of the act itself. Accordingly, neither "who," nor "why," nor "about what," are circumstances: since "who" refers to the efficient cause, "why" to the final cause, and "about what" to the material cause.On the contrary is the authority of the Philosopher in Ethic. iii, 1.
On the contrary Tully, in his Rhetoric (De Invent. Rhetor. i), gives seven circumstances, which are contained in this verse:
"Quis, quid, ubi, quibus auxiliis, cur, quomodo, quando---
Who, what, where, by what aids, why, how, and when." For in acts we must take note of "who" did it, "by what aids" or "instruments" he did it, "what" he did, "where" he did it, "why" he did it, "how" and "when" he did it. But Aristotle in Ethic. iii, 1 adds yet another, to wit, "about what," which Tully includes in the circumstance "what."
The reason of this enumeration may be set down as follows. For a circumstance is described as something outside the substance of the act, and yet in a way touching it. Now this happens in three ways: first, inasmuch as it touches the act itself; secondly, inasmuch as it touches the cause of the act; thirdly, inasmuch as it touches the effect. It touches the act itself, either by way of measure, as "time" and "place"; or by qualifying the act as the "mode of acting." It touches the effect when we consider "what" is done. It touches the cause of the act, as to the final cause, by the circumstance "why"; as to the material cause, or object, in the circumstance "about what"; as to the principal efficient cause, in the circumstance "who"; and as to the instrumental efficient cause, in the circumstance "by what aids."
Reply to Objection: 1. Time and place surround [circumstant] the act by way of measure; but the others surround the act by touching it in any other way, while they are extrinsic to the substance of the act.
2. This mode "well" or "ill" is not a circumstance, but results from all the circumstances. But the mode which refers to a quality of the act is a special circumstance; for instance, that a man walk fast or slowly; that he strike hard or gently, and so forth.
3. A condition of the cause, on which the substance of the act depends, is not a circumstance; it must be an additional condition. Thus, in regard to the object, it is not a circumstance of theft that the object is another's property, for this belongs to the substance of the act; but that it be great or small. And the same applies to the other circumstances which are considered in reference to the other causes. For the end that specifies the act is not a circumstance, but some additional end. Thus, that a valiant man act "valiantly for the sake of" the good of the virtue or fortitude, is not a circumstance; but if he act valiantly for the sake of the delivery of the state, or of Christendom, or some such purpose. The same is to be said with regard to the circumstance "what"; for that a man by pouring water on someone should happen to wash him, is not a circumstance of the washing; but that in doing so he give him a chill, or scald him; heal him or harm him, these are circumstances.
144
Objection: 1. It would seem that these are not the most important circumstances, namely, "why" and those "in which the act is, [*hen ois e praxis]" as stated in Ethic. iii, 1. For those in which the act is seem to be place and time: and these do not seem to be the most important of the circumstances, since, of them all, they are the most extrinsic to the act. Therefore those things in which the act is are not the most important circumstances.
2. Further, the end of a thing is extrinsic to it. Therefore it is not the most important circumstance.
3. Further, that which holds the foremost place in regard to each thing, is its cause and its form. But the cause of an act is the person that does it; while the form of an act is the manner in which it is done. Therefore these two circumstances seem to be of the greatest importance.
On the contrary Gregory of Nyssa [*Nemesius, De Nat. Hom. xxxi.] says that "the most important circumstances" are "why it is done" and "what is done."
I answer that As stated above (Question [1], Article [1]), acts are properly called human, inasmuch as they are voluntary. Now, the motive and object of the will is the end. Therefore that circumstance is the most important of all which touches the act on the part of the end, viz. the circumstance "why": and the second in importance, is that which touches the very substance of the act, viz. the circumstance "what he did." As to the other circumstances, they are more or less important, according as they more or less approach to these.
Reply to Objection: 1. By those things "in which the act is" the Philosopher does not mean time and place, but those circumstances that are affixed to the act itself. Wherefore Gregory of Nyssa [*Nemesius, De Nat. Hom. xxxi], as though he were explaining the dictum of the Philosopher, instead of the latter's term---"in which the act is"---said, "what is done."
2. Although the end is not part of the substance of the act, yet it is the most important cause of the act, inasmuch as it moves the agent to act. Wherefore the moral act is specified chiefly by the end.
3. The person that does the act is the cause of that act, inasmuch as he is moved thereto by the end; and it is chiefly in this respect that he is directed to the act; while other conditions of the person have not such an important relation to the act. As to the mode, it is not the substantial form of the act, for in an act the substantial form depends on the object and term or end; but it is, as it were, a certain accidental quality of the act.
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We must now consider the different acts of the will; and in the first place, those acts which belong to the will itself immediately, as being elicited by the will; secondly, those acts which are commanded by the will.
Now the will is moved to the end, and to the means to the end; we must therefore consider: (1) those acts of the will whereby it is moved to the end; and (2) those whereby it is moved to the means. And since it seems that there are three acts of the will in reference to the end; viz. "volition," "enjoyment," and "intention"; we must consider: (1) volition; (2) enjoyment; (3) intention. Concerning the first, three things must be considered: (1) Of what things is the will? (2) By what is the will moved? (3) How is it moved?
Under the first head there are three points of inquiry:
(1) Whether the will is of good only?
(2) Whether it is of the end only, or also of the means?
(3) If in any way it be of the means, whether it be moved to the end and to the means, by the same movement?
161
Objection: 1. It would seem that the will is not of good only. For the same power regards opposites; for instance, sight regards white and black. But good and evil are opposites. Therefore the will is not only of good, but also of evil.
2. Further, rational powers can be directed to opposite purposes, according to the Philosopher (Metaph. ix, 2). But the will is a rational power, since it is "in the reason," as is stated in De Anima iii, 9. Therefore the will can be directed to opposites; and consequently its volition is not confined to good, but extends to evil.
3. Further, good and being are convertible. But volition is directed not only to beings, but also to non-beings. For sometimes we wish "not to walk," or "not to speak"; and again at times we wish for future things, which are not actual beings. Therefore the will is not of good only.
On the contrary Dionysius says (Div. Nom. iv) that "evil is outside the scope of the will," and that "all things desire good."
I answer that The will is a rational appetite. Now every appetite is only of something good. The reason of this is that the appetite is nothing else than an inclination of a person desirous of a thing towards that thing. Now every inclination is to something like and suitable to the thing inclined. Since, therefore, everything, inasmuch as it is being and substance, is a good, it must needs be that every inclination is to something good. And hence it is that the Philosopher says (Ethic. i, 1) that "the good is that which all desire."But it must be noted that, since every inclination results from a form, the natural appetite results from a form existing in the nature of things: while the sensitive appetite, as also the intellective or rational appetite, which we call the will, follows from an apprehended form. Therefore, just as the natural appetite tends to good existing in a thing; so the animal or voluntary appetite tends to a good which is apprehended. Consequently, in order that the will tend to anything, it is requisite, not that this be good in very truth, but that it be apprehended as good. Wherefore the Philosopher says (Phys. ii, 3) that "the end is a good, or an apparent good."
Reply to Objection: 1. The same power regards opposites, but it is not referred to them in the same way. Accordingly, the will is referred both to good and evil: but to good by desiring it: to evil, by shunning it. Wherefore the actual desire of good is called "volition" [*In Latin, 'voluntas'. To avoid confusion with "voluntas" (the will) St. Thomas adds a word of explanation, which in the translation may appear superfluous], meaning thereby the act of the will; for it is in this sense that we are now speaking of the will. On the other hand, the shunning of evil is better described as "nolition": wherefore, just as volition is of good, so nolition is of evil.
2. A rational power is not to be directed to all opposite purposes, but to those which are contained under its proper object; for no power seeks other than its proper object. Now, the object of the will is good. Wherefore the will can be directed to such opposite purposes as are contained under good, such as to be moved or to be at rest, to speak or to be silent, and such like: for the will can be directed to either under the aspect of good.
3. That which is not a being in nature, is considered as a being in the reason, wherefore negations and privations are said to be "beings of reason." In this way, too, future things, in so far as they are apprehended, are beings. Accordingly, in so far as such like are beings, they are apprehended under the aspect of good; and it is thus that the will is directed to them. Wherefore the Philosopher says (Ethic. v, 1) that "to lack evil is considered as a good."
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Objection: 1. It would seem that volition is not of the means, but of the end only. For the Philosopher says (Ethic. iii, 2) that "volition is of the end, while choice is of the means."
2. Further, "For objects differing in genus there are corresponding different powers of the soul" (Ethic. vi, 1). Now, the end and the means are in different genera of good: because the end, which is a good either of rectitude or of pleasure, is in the genus "quality," or "action," or "passion"; whereas the good which is useful, and is directed to and end, is in the genus "relation" (Ethic. i, 6). Therefore, if volition is of the end, it is not of the means.
3. Further, habits are proportionate to powers, since they are perfections thereof. But in those habits which are called practical arts, the end belongs to one, and the means to another art; thus the use of a ship, which is its end, belongs to the (art of the) helmsman; whereas the building of the ship, which is directed to the end, belongs to the art of the shipwright. Therefore, since volition is of the end, it is not of the means.
On the contrary In natural things, it is by the same power that a thing passes through the middle space, and arrives at the terminus. But the means are a kind of middle space, through which one arrives at the end or terminus. Therefore, if volition is of the end, it is also of the means.
I answer that The word "voluntas" sometimes designates the power of the will, sometimes its act [*See note: above Article [1], Reply Objection [1]]. Accordingly, if we speak of the will as a power, thus it extends both to the end and to the means. For every power extends to those things in which may be considered the aspect of the object of that power in any way whatever: thus the sight extends to all things whatsoever that are in any way colored. Now the aspect of good, which is the object of the power of the will, may be found not only in the end, but also in the means.If, however, we speak of the will in regard to its act, then, properly speaking, volition is of the end only. Because every act denominated from a power, designates the simple act of that power: thus "to understand" designates the simple act of the understanding. Now the simple act of a power is referred to that which is in itself the object of that power. But that which is good and willed in itself is the end. Wherefore volition, properly speaking, is of the end itself. On the other hand, the means are good and willed, not in themselves, but as referred to the end. Wherefore the will is directed to them, only in so far as it is directed to the end: so that what it wills in them, is the end. Thus, to understand, is properly directed to things that are known in themselves, i.e. first principles: but we do not speak of understanding with regard to things known through first principles, except in so far as we see the principles in those things. For in morals the end is what principles are in speculative science (Ethic. viii, 8).
Reply to Objection: 1. The Philosopher is speaking of the will in reference to the simple act of the will; not in reference to the power of the will.
2. There are different powers for objects that differ in genus and are on an equality; for instance, sound and color are different genera of sensibles, to which are referred hearing and sight. But the useful and the righteous are not on an equality, but are as that which is of itself, and that which is in relation to another. Now such like objects are always referred to the same power; for instance, the power of sight perceives both color and light by which color is seen.
3. Not everything that diversifies habits, diversifies the powers: since habits are certain determinations of powers to certain special acts. Moreover, every practical art considers both the end and the means. For the art of the helmsman does indeed consider the end, as that which it effects; and the means, as that which it commands. On the other hand, the ship-building art considers the means as that which it effects; but it considers that which is the end, as that to which it refers what it effects. And again, in every practical art there is an end proper to it and means that belong properly to that art.
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Objection: 1. It would seem that the will is moved by the same act, to the end and to the means. Because according to the Philosopher (Topic. iii, 2) "where one thing is on account of another there is only one." But the will does not will the means save on account of the end. Therefore it is moved to both by the same act.
2. Further, the end is the reason for willing the means, just as light is the reason of seeing colors. But light and colors are seen by the same act. Therefore it is the same movement of the will, whereby it wills the end and the means.
3. Further, it is one and the same natural movement which tends through the middle space to the terminus. But the means are in comparison to the end, as the middle space is to the terminus. Therefore it is the same movement of the will whereby it is directed to the end and to the means.
On the contrary Acts are diversified according to their objects. But the end is a different species of good from the means, which are a useful good. Therefore the will is not moved to both by the same act.
I answer that Since the end is willed in itself, whereas the means, as such, are only willed for the end, it is evident that the will can be moved to the end, without being moved to the means; whereas it cannot be moved to the means, as such, unless it is moved to the end. Accordingly the will is moved to the end in two ways: first, to the end absolutely and in itself; secondly, as the reason for willing the means. Hence it is evident that the will is moved by one and the same movement, to the end, as the reason for willing the means; and to the means themselves. But it is another act whereby the will is moved to the end absolutely. And sometimes this act precedes the other in time; for example when a man first wills to have health, and afterwards deliberating by what means to be healed, wills to send for the doctor to heal him. The same happens in regard to the intellect: for at first a man understands the principles in themselves; but afterwards he understands them in the conclusions, inasmuch as he assents to the conclusions on account of the principles.
Reply to Objection: 1. This argument holds in respect of the will being moved to the end as the reason for willing the means.
2. Whenever color is seen, by the same act the light is seen; but the light can be seen without the color being seen. In like manner whenever a man wills the means, by the same act he wills the end; but not the conversely.
3. In the execution of a work, the means are as the middle space, and the end, as the terminus. Wherefore just as natural movement sometimes stops in the middle and does not reach the terminus; so sometimes one is busy with the means, without gaining the end. But in willing it is the reverse: the will through (willing) the end comes to will the means; just as the intellect arrives at the conclusions through the principles which are called "means." Hence it is that sometimes the intellect understands a mean, and does not proceed thence to the conclusion. And in like manner the will sometimes wills the end, and yet does not proceed to will the means.
The solution to the argument in the contrary sense is clear from what has been said above (Article [2], ad 2). For the useful and the righteous are not species of good in an equal degree, but are as that which is for its own sake and that which is for the sake of something else: wherefore the act of the will can be directed to one and not to the other; but not conversely.
180
We must now consider what moves the will: and under this head there are six points of inquiry:
(1) Whether the will is moved by the intellect?
(2) Whether it is moved by the sensitive appetite?
(3) Whether the will moves itself?
(4) Whether it is moved by an extrinsic principle?
(5) Whether it is moved by a heavenly body?
(6) Whether the will is moved by God alone as by an extrinsic principle?
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Objection: 1. It would seem that the will is not moved by the intellect. For Augustine says on Ps 118,20: "My soul hath coveted to long for Thy justifications: The intellect flies ahead, the desire follows sluggishly or not at all: we know what is good, but deeds delight us not." But it would not be so, if the will were moved by the intellect: because movement of the movable results from motion of the mover. Therefore the intellect does not move the will.
2. Further, the intellect in presenting the appetible object to the will, stands in relation to the will, as the imagination in representing the appetible will to the sensitive appetite. But the imagination, does not remove the sensitive appetite: indeed sometimes our imagination affects us no more than what is set before us in a picture, and moves us not at all (De Anima ii, 3). Therefore neither does the intellect move the will.
3. Further, the same is not mover and moved in respect of the same thing. But the will moves the intellect; for we exercise the intellect when we will. Therefore the intellect does not move the will.
On the contrary The Philosopher says (De Anima iii, 10) that "the appetible object is a mover not moved, whereas the will is a mover moved."
I answer that A thing requires to be moved by something in so far as it is in potentiality to several things; for that which is in potentiality needs to be reduced to act by something actual; and to do this is to move. Now a power of the soul is seen to be in potentiality to different things in two ways: first, with regard to acting and not acting; secondly, with regard to this or that action. Thus the sight sometimes sees actually, and sometimes sees not: and sometimes it sees white, and sometimes black. It needs therefore a mover in two respects, viz. as to the exercise or use of the act, and as to the determination of the act. The first of these is on the part of the subject, which is sometimes acting, sometimes not acting: while the other is on the part of the object, by reason of which the act is specified.The motion of the subject itself is due to some agent. And since every agent acts for an end, as was shown above (Question [1], Article [2]), the principle of this motion lies in the end. And hence it is that the art which is concerned with the end, by its command moves the art which is concerned with the means; just as the "art of sailing commands the art of shipbuilding" (Phys. ii, 2). Now good in general, which has the nature of an end, is the object of the will. Consequently, in this respect, the will moves the other powers of the soul to their acts, for we make use of the other powers when we will. For the end and perfection of every other power, is included under the object of the will as some particular good: and always the art or power to which the universal end belongs, moves to their acts the arts or powers to which belong the particular ends included in the universal end. Thus the leader of an army, who intends the common good---i.e. the order of the whole army---by his command moves one of the captains, who intends the order of one company.On the other hand, the object moves, by determining the act, after the manner of a formal principle, whereby in natural things actions are specified, as heating by heat. Now the first formal principle is universal "being" and "truth," which is the object of the intellect. And therefore by this kind of motion the intellect moves the will, as presenting its object to it.
Reply to Objection: 1. The passage quoted proves, not that the intellect does not move, but that it does not move of necessity.
2. Just as the imagination of a form without estimation of fitness or harmfulness, does not move the sensitive appetite; so neither does the apprehension of the true without the aspect of goodness and desirability. Hence it is not the speculative intellect that moves, but the practical intellect (De Anima iii, 9).
3. The will moves the intellect as to the exercise of its act; since even the true itself which is the perfection of the intellect, is included in the universal good, as a particular good. But as to the determination of the act, which the act derives from the object, the intellect moves the will; since the good itself is apprehended under a special aspect as contained in the universal true. It is therefore evident that the same is not mover and moved in the same respect.
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Objection: 1. It would seem that the will cannot be moved by the sensitive appetite. For "to move and to act is more excellent than to be passive," as Augustine says (Gn ad lit. xii, 16). But the sensitive appetite is less excellent than the will which is the intellectual appetite; just as sense is less excellent than intellect. Therefore the sensitive appetite does not move the will.
2. Further, no particular power can produce a universal effect. But the sensitive appetite is a particular power, because it follows the particular apprehension of sense. Therefore it cannot cause the movement of the will, which movement is universal, as following the universal apprehension of the intellect.
3. Further, as is proved in Phys. viii, 5, the mover is not moved by that which it moves, in such a way that there be reciprocal motion. But the will moves the sensitive appetite, inasmuch as the sensitive appetite obeys the reason. Therefore the sensitive appetite does not move the will.
On the contrary It is written (Jc 1,14): "Every man is tempted by his own concupiscence, being drawn away and allured." But man would not be drawn away by his concupiscence, unless his will were moved by the sensitive appetite, wherein concupiscence resides. Therefore the sensitive appetite moves the will.
I answer that As stated above (Article [1]), that which is apprehended as good and fitting, moves the will by way of object. Now, that a thing appear to be good and fitting, happens from two causes: namely, from the condition, either of the thing proposed, or of the one to whom it is proposed. For fitness is spoken of by way of relation; hence it depends on both extremes. And hence it is that taste, according as it is variously disposed, takes to a thing in various ways, as being fitting or unfitting. Wherefore as the Philosopher says (Ethic. iii, 5): "According as a man is, such does the end seem to him."Now it is evident that according to a passion of the sensitive appetite man is changed to a certain disposition. Wherefore according as man is affected by a passion, something seems to him fitting, which does not seem so when he is not so affected: thus that seems good to a man when angered, which does not seem good when he is calm. And in this way, the sensitive appetite moves the will, on the part of the object.
Reply to Objection: 1. Nothing hinders that which is better simply and in itself, from being less excellent in a certain respect. Accordingly the will is simply more excellent than the sensitive appetite: but in respect of the man in whom a passion is predominant, in so far as he is subject to that passion, the sensitive appetite is more excellent.
2. Men's acts and choices are in reference to singulars. Wherefore from the very fact that the sensitive appetite is a particular power, it has great influence in disposing man so that something seems to him such or otherwise, in particular cases.
3. As the Philosopher says (Polit. i, 2), the reason, in which resides the will, moves, by its command, the irascible and concupiscible powers, not, indeed, "by a despotic sovereignty," as a slave is moved by his master, but by a "royal and politic sovereignty," as free men are ruled by their governor, and can nevertheless act counter to his commands. Hence both irascible and concupiscible can move counter to the will: and accordingly nothing hinders the will from being moved by them at times.
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Objection: 1. It would seem that the will does not move itself. For every mover, as such, is in act: whereas what is moved, is in potentiality; since "movement is the act of that which is in potentiality, as such" [*Aristotle, Phys. iii, 1]. Now the same is not in potentiality and in act, in respect of the same. Therefore nothing moves itself. Neither, therefore, can the will move itself.
2. Further, the movable is moved on the mover being present. But the will is always present to itself. If, therefore, it moved itself, it would always be moving itself, which is clearly false.
3. Further, the will is moved by the intellect, as stated above (Article [1]). If, therefore, the will move itself, it would follow that the same thing is at once moved immediately by two movers; which seems unreasonable. Therefore the will does not move itself.
On the contrary The will is mistress of its own act, and to it belongs to will and not to will. But this would not be so, had it not the power to move itself to will. Therefore it moves itself.
I answer that As stated above (Article [1]), it belongs to the will to move the other powers, by reason of the end which is the will's object. Now, as stated above (Question [8], Article [2]), the end is in things appetible, what the principle is in things intelligible. But it is evident that the intellect, through its knowledge of the principle, reduces itself from potentiality to act, as to its knowledge of the conclusions; and thus it moves itself. And, in like manner, the will, through its volition of the end, moves itself to will the means.
Reply to Objection: 1. It is not in respect of the same that the will moves itself and is moved: wherefore neither is it in act and in potentiality in respect of the same. But forasmuch as it actually wills the end, it reduces itself from potentiality to act, in respect of the means, so as, in a word, to will them actually.
2. The power of the will is always actually present to itself; but the act of the will, whereby it wills an end, is not always in the will. But it is by this act that it moves itself. Accordingly it does not follow that it is always moving itself.
3. The will is moved by the intellect, otherwise than by itself. By the intellect it is moved on the part of the object: whereas it is moved by itself, as to the exercise of its act, in respect of the end.
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Objection: 1. It would seem that the will is not moved by anything exterior. For the movement of the will is voluntary. But it is essential to the voluntary act that it be from an intrinsic principle, just as it is essential to the natural act. Therefore the movement of the will is not from anything exterior.
2. Further, the will cannot suffer violence, as was shown above (Question [6], Article [4]). But the violent act is one "the principle of which is outside the agent" [*Aristotle, Ethic. iii, 1]. Therefore the will cannot be moved by anything exterior.
3. Further, that which is sufficiently moved by one mover, needs not to be moved by another. But the will moves itself sufficiently. Therefore it is not moved by anything exterior.
On the contrary The will is moved by the object, as stated above (Article [1]). But the object of the will can be something exterior, offered to the sense. Therefore the will can be moved by something exterior.
I answer that As far as the will is moved by the object, it is evident that it can be moved by something exterior. But in so far as it is moved in the exercise of its act, we must again hold it to be moved by some exterior principle.For everything that is at one time an agent actually, and at another time an agent in potentiality, needs to be moved by a mover. Now it is evident that the will begins to will something, whereas previously it did not will it. Therefore it must, of necessity, be moved by something to will it. And, indeed, it moves itself, as stated above (Article [3]), in so far as through willing the end it reduces itself to the act of willing the means. Now it cannot do this without the aid of counsel: for when a man wills to be healed, he begins to reflect how this can be attained, and through this reflection he comes to the conclusion that he can be healed by a physician: and this he wills. But since he did not always actually will to have health, he must, of necessity, have begun, through something moving him, to will to be healed. And if the will moved itself to will this, it must, of necessity, have done this with the aid of counsel following some previous volition. But this process could not go on to infinity. Wherefore we must, of necessity, suppose that the will advanced to its first movement in virtue of the instigation of some exterior mover, as Aristotle concludes in a chapter of the Eudemian Ethics (vii, 14).
Reply to Objection: 1. It is essential to the voluntary act that its principle be within the agent: but it is not necessary that this inward principle be the first principle unmoved by another. Wherefore though the voluntary act has an inward proximate principle, nevertheless its first principle is from without. Thus, too, the first principle of the natural movement is from without, that, to wit, which moves nature.
2. For an act to be violent it is not enough that its principle be extrinsic, but we must add "without the concurrence of him that suffers violence." This does not happen when the will is moved by an exterior principle: for it is the will that wills, though moved by another. But this movement would be violent, if it were counter to the movement of the will: which in the present case is impossible; since then the will would will and not will the same thing.
3. The will moves itself sufficiently in one respect, and in its own order, that is to say as proximate agent; but it cannot move itself in every respect, as we have shown. Wherefore it needs to be moved by another as first mover.
Summa Th. I-II EN Qu.7 a.3