Summa Theologica Part II (Pars Prima Secundae) Part 12

Reply Obj. 1: Not every principle is a first principle. Therefore, although it is essential to the voluntary act that its principle be within the agent, nevertheless it is not contrary to the nature of the voluntary act that this intrinsic principle be caused or moved by an extrinsic principle: because it is not essential to the voluntary act that its intrinsic principle be a first principle. Yet again it must be observed that a principle of movement may happen to be first in a genus, but not first simply: thus in the genus of things subject to alteration, the first principle of alteration is a heavenly body, which nevertheless is not the first mover simply, but is moved locally by a higher mover. And so the intrinsic principle of the voluntary act, i.e. the cognitive and appet.i.tive power, is the first principle in the genus of appet.i.tive movement, although it is moved by an extrinsic principle according to other species of movement.

Reply Obj. 2: New movements in animals are indeed preceded by a motion from without; and this in two respects. First, in so far as by means of an extrinsic motion an animal's senses are confronted with something sensible, which, on being apprehended, moves the appet.i.te.

Thus a lion, on seeing a stag in movement and coming towards him, begins to be moved towards the stag. Secondly, in so far as some extrinsic motion produces a physical change in an animal's body, as in the case of cold or heat; and through the body being affected by the motion of an outward body, the sensitive appet.i.te which is the power of a bodily organ, is also moved indirectly; thus it happens that through some alteration in the body the appet.i.te is roused to the desire of something. But this is not contrary to the nature of voluntariness, as stated above (ad 1), for such movements caused by an extrinsic principle are of another genus of movement.

Reply Obj. 3: G.o.d moves man to act, not only by proposing the appetible to the senses, or by effecting a change in his body, but also by moving the will itself; because every movement either of the will or of nature, proceeds from G.o.d as the First Mover. And just as it is not incompatible with nature that the natural movement be from G.o.d as the First Mover, inasmuch as nature is an instrument of G.o.d moving it: so it is not contrary to the essence of a voluntary act, that it proceed from G.o.d, inasmuch as the will is moved by G.o.d.

Nevertheless both natural and voluntary movements have this in common, that it is essential that they should proceed from a principle within the agent.

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SECOND ARTICLE [I-II, Q. 6, Art. 2]

Whether There Is Anything Voluntary in Irrational Animals?

Objection 1: It would seem that there is nothing voluntary in irrational animals. For a thing is called "voluntary" from _voluntas_ (will). Now since the will is in the reason (De Anima iii, 9), it cannot be in irrational animals. Therefore neither is there anything voluntary in them.

Obj. 2: Further, according as human acts are voluntary, man is said to be master of his actions. But irrational animals are not masters of their actions; for "they act not; rather are they acted upon," as Damascene says (De Fide Orth. ii, 27). Therefore there is no such thing as a voluntary act in irrational animals.

Obj. 3: Further, Damascene says (De Fide Orth. 24) that "voluntary acts lead to praise and blame." But neither praise nor blame is due to the acts of irrational minds. Therefore such acts are not voluntary.

_On the contrary,_ The Philosopher says (Ethic. iii, 2) that "both children and irrational animals partic.i.p.ate in the voluntary." The same is said by Damascene (De Fide Orth. 24) and Gregory of Nyssa [*Nemesius, De Nat. Hom. x.x.xii.].

_I answer that,_ As stated above (A. 1), it is essential to the voluntary act that its principle be within the agent, together with some knowledge of the end. Now knowledge of the end is twofold; perfect and imperfect. Perfect knowledge of the end consists in not only apprehending the thing which is the end, but also in knowing it under the aspect of end, and the relations.h.i.+p of the means to that end. And such knowledge belongs to none but the rational nature. But imperfect knowledge of the end consists in mere apprehension of the end, without knowing it under the aspect of end, or the relations.h.i.+p of an act to the end. Such knowledge of the end is exercised by irrational animals, through their senses and their natural estimative power.

Consequently perfect knowledge of the end leads to the perfect voluntary; inasmuch as, having apprehended the end, a man can, from deliberating about the end and the means thereto, be moved, or not, to gain that end. But imperfect knowledge of the end leads to the imperfect voluntary; inasmuch as the agent apprehends the end, but does not deliberate, and is moved to the end at once. Wherefore the voluntary in its perfection belongs to none but the rational nature: whereas the imperfect voluntary is within the competency of even irrational animals.

Reply Obj. 1: The will is the name of the rational appet.i.te; and consequently it cannot be in things devoid of reason. But the word "voluntary" is derived from "voluntas" (will), and can be extended to those things in which there is some partic.i.p.ation of will, by way of likeness thereto. It is thus that voluntary action is attributed to irrational animals, in so far as they are moved to an end, through some kind of knowledge.

Reply Obj. 2: The fact that man is master of his actions, is due to his being able to deliberate about them: for since the deliberating reason is indifferently disposed to opposite things, the will can be inclined to either. But it is not thus that voluntariness is in irrational animals, as stated above.

Reply Obj. 3: Praise and blame are the result of the voluntary act, wherein is the perfect voluntary; such as is not to be found in irrational animals.

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THIRD ARTICLE [I-II, Q. 6, Art. 3]

Whether There Can Be Voluntariness Without Any Act?

Objection 1: It would seem that voluntariness cannot be without any act. For that is voluntary which proceeds from the will. But nothing can proceed from the will, except through some act, at least an act of the will. Therefore there cannot be voluntariness without act.

Obj. 2: Further, just as one is said to wish by an act of the will, so when the act of the will ceases, one is said not to wish. But not to wish implies involuntariness, which is contrary to voluntariness.

Therefore there can be nothing voluntary when the act of the will ceases.

Obj. 3: Further, knowledge is essential to the voluntary, as stated above (AA. 1, 2). But knowledge involves an act. Therefore voluntariness cannot be without some act.

_On the contrary,_ The word "voluntary" is applied to that of which we are masters. Now we are masters in respect of to act and not to act, to will and not to will. Therefore just as to act and to will are voluntary, so also are not to act and not to will.

_I answer that,_ Voluntary is what proceeds from the will. Now one thing proceeds from another in two ways. First, directly; in which sense something proceeds from another inasmuch as this other acts; for instance, heating from heat. Secondly, indirectly; in which sense something proceeds from another through this other not acting; thus the sinking of a s.h.i.+p is set down to the helmsman, from his having ceased to steer. But we must take note that the cause of what follows from want of action is not always the agent as not acting; but only then when the agent can and ought to act. For if the helmsman were unable to steer the s.h.i.+p or if the s.h.i.+p's helm be not entrusted to him, the sinking of the s.h.i.+p would not be set down to him, although it might be due to his absence from the helm.

Since, then, the will by willing and acting, is able, and sometimes ought, to hinder not-willing and not-acting; this not-willing and not-acting is imputed to, as though proceeding from, the will. And thus it is that we can have the voluntary without an act; sometimes without outward act, but with an interior act; for instance, when one wills not to act; and sometimes without even an interior act, as when one does not will to act.

Reply Obj. 1: We apply the word "voluntary" not only to that which proceeds from the will directly, as from its action; but also to that which proceeds from it indirectly as from its inaction.

Reply Obj. 2: "Not to wish" is said in two senses. First, as though it were one word, and the infinitive of "I-do-not-wish." Consequently just as when I say "I do not wish to read," the sense is, "I wish not to read"; so "not to wish to read" is the same as "to wish not to read," and in this sense "not to wish" implies involuntariness.

Secondly it is taken as a sentence: and then no act of the will is affirmed. And in this sense "not to wish" does not imply involuntariness.

Reply Obj. 3: Voluntariness requires an act of knowledge in the same way as it requires an act of will; namely, in order that it be in one's power to consider, to wish and to act. And then, just as not to wish, and not to act, when it is time to wish and to act, is voluntary, so is it voluntary not to consider.

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FOURTH ARTICLE [I-II, Q. 6, Art. 4]

Whether Violence Can Be Done to the Will?

Objection 1: It would seem that violence can be done to the will. For everything can be compelled by that which is more powerful. But there is something, namely, G.o.d, that is more powerful than the human will.

Therefore it can be compelled, at least by Him.

Obj. 2: Further, every pa.s.sive subject is compelled by its active principle, when it is changed by it. But the will is a pa.s.sive force: for it is a "mover moved" (De Anima iii, 10). Therefore, since it is sometimes moved by its active principle, it seems that sometimes it is compelled.

Obj. 3: Further, violent movement is that which is contrary to nature. But the movement of the will is sometimes contrary to nature; as is clear of the will's movement to sin, which is contrary to nature, as Damascene says (De Fide Orth. iv, 20). Therefore the movement of the will can be compelled.

_On the contrary,_ Augustine says (De Civ. Dei v, 10) that what is done by the will is not done of necessity. Now, whatever is done under compulsion is done of necessity: consequently what is done by the will, cannot be compelled. Therefore the will cannot be compelled to act.

_I answer that,_ The act of the will is twofold: one is its immediate act, as it were, elicited by it, namely, "to wish"; the other is an act of the will commanded by it, and put into execution by means of some other power, such as "to walk" and "to speak," which are commanded by the will to be executed by means of the motive power.

As regards the commanded acts of the will, then, the will can suffer violence, in so far as violence can prevent the exterior members from executing the will's command. But as to the will's own proper act, violence cannot be done to the will.

The reason of this is that the act of the will is nothing else than an inclination proceeding from the interior principle of knowledge: just as the natural appet.i.te is an inclination proceeding from an interior principle without knowledge. Now what is compelled or violent is from an exterior principle. Consequently it is contrary to the nature of the will's own act, that it should be subject to compulsion and violence: just as it is also contrary to the nature of a natural inclination or movement. For a stone may have an upward movement from violence, but that this violent movement be from its natural inclination is impossible. In like manner a man may be dragged by force: but it is contrary to the very notion of violence, that he be dragged of his own will.

Reply Obj. 1: G.o.d Who is more powerful than the human will, can move the will of man, according to Prov. 21:1: "The heart of the king is in the hand of the Lord; whithersoever He will He shall turn it." But if this were by compulsion, it would no longer be by an act of the will, nor would the will itself be moved, but something else against the will.

Reply Obj. 2: It is not always a violent movement, when a pa.s.sive subject is moved by its active principle; but only when this is done against the interior inclination of the pa.s.sive subject. Otherwise every alteration and generation of simple bodies would be unnatural and violent: whereas they are natural by reason of the natural interior apt.i.tude of the matter or subject to such a disposition. In like manner when the will is moved, according to its own inclination, by the appetible object, this movement is not violent but voluntary.

Reply Obj. 3: That to which the will tends by sinning, although in reality it is evil and contrary to the rational nature, nevertheless is apprehended as something good and suitable to nature, in so far as it is suitable to man by reason of some pleasurable sensation or some vicious habit.

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FIFTH ARTICLE [I-II, Q. 6, Art. 5]

Whether Violence Causes Involuntariness?

Objection 1: It would seem that violence does not cause involuntariness. For we speak of voluntariness and involuntariness in respect of the will. But violence cannot be done to the will, as shown above (A. 4). Therefore violence cannot cause involuntariness.

Obj. 2: Further, that which is done involuntarily is done with grief, as Damascene (De Fide Orth. ii, 24) and the Philosopher (Ethic. iii, 5) say. But sometimes a man suffers compulsion without being grieved thereby. Therefore violence does not cause involuntariness.

Obj. 3: Further, what is from the will cannot be involuntary. But some violent actions proceed from the will: for instance, when a man with a heavy body goes upwards; or when a man contorts his limbs in a way contrary to their natural flexibility. Therefore violence does not cause involuntariness.

_On the contrary,_ The Philosopher (Ethic. iii, 1) and Damascene (De Fide Orth. ii, 24) say that "things done under compulsion are involuntary."

_I answer that,_ Violence is directly opposed to the voluntary, as likewise to the natural. For the voluntary and the natural have this in common, that both are from an intrinsic principle; whereas violence is from an extrinsic principle. And for this reason, just as in things devoid of knowledge, violence effects something against nature: so in things endowed with knowledge, it effects something against the will. Now that which is against nature is said to be "unnatural"; and in like manner that which is against the will is said to be "involuntary." Therefore violence causes involuntariness.

Reply Obj. 1: The involuntary is opposed to the voluntary. Now it has been said (A. 4) that not only the act, which proceeds immediately from the will, is called voluntary, but also the act commanded by the will. Consequently, as to the act which proceeds immediately from the will, violence cannot be done to the will, as stated above (A. 4): wherefore violence cannot make that act involuntary. But as to the commanded act, the will can suffer violence: and consequently in this respect violence causes involuntariness.

Reply Obj. 2: As that is said to be natural, which is according to the inclination of nature; so that is said to be voluntary, which is according to the inclination of the will. Now a thing is said to be natural in two ways. First, because it is from nature as from an active principle: thus it is natural for fire to produce heat.