Thomas Aquinas - Summa Theologica, Part I-II (Pars Prima Secundae)

Obj. 2: Further, passions differ according to their objects; just as movements differ according to their termini. But there is no other contrariety of movements, except that of the termini, as is stated in Phys. v, 3. Therefore there is no other contrariety of passions, save that of the objects. Now the object of the appetite is good or evil. Therefore in no appetitive power can there be contrariety of passions other than that of good and evil.

Obj. 3: Further, "every passion of the soul is by way of approach and withdrawal," as Avicenna declares in his sixth book of Physics. Now approach results from the apprehension of good; withdrawal, from the apprehension of evil: since just as "good is what all desire" (Ethic. i, 1), so evil is what all shun. Therefore, in the passions of the soul, there can be no other contrariety than that of good and evil.

On the contrary, Fear and daring are contrary to one another, as stated in Ethic. iii, 7. But fear and daring do not differ in respect of good and evil: because each regards some kind of evil. Therefore not every contrariety of the irascible passions is that of good and evil.

I answer that, Passion is a kind of movement, as stated in Phys. iii, 3. Therefore contrariety of passions is based on contrariety of movements or changes. Now there is a twofold contrariety in changes and movements, as stated in Phys. v, 5. One is according to approach and withdrawal in respect of the same term: and this contrariety belongs properly to changes, i.e. to generation, which is a change to being, and to corruption, which is a change from being. The other contrariety is according to opposition of termini, and belongs properly to movements: thus whitening, which is movement from black to white, is contrary to blackening, which is movement from white to black.

Accordingly there is a twofold contrariety in the passions of the soul: one, according to contrariety of objects, i.e. of good and evil; the other, according to approach and withdrawal in respect of the same term. In the concupiscible passions the former contrariety alone is to be found; viz. that which is based on the objects: whereas in the irascible passions, we find both forms of contrariety. The reason of this is that the object of the concupiscible faculty, as stated above (A. 1), is sensible good or evil considered absolutely. Now good, as such, cannot be a term wherefrom, but only a term whereto, since nothing shuns good as such; on the contrary, all things desire it. In like manner, nothing desires evil, as such; but all things shun it: wherefore evil cannot have the aspect of a term whereto, but only of a term wherefrom. Accordingly every concupiscible passion in respect of good, tends to it, as love, desire and joy; while every concupiscible passion in respect of evil, tends from it, as hatred, avoidance or dislike, and sorrow. Wherefore, in the concupiscible passions, there can be no contrariety of approach and withdrawal in respect of the same object.

On the other hand, the object of the irascible faculty is sensible good or evil, considered not absolutely, but under the aspect of difficulty or arduousness. Now the good which is difficult or arduous, considered as good, is of such a nature as to produce in us a tendency to it, which tendency pertains to the passion of hope; whereas, considered as arduous or difficult, it makes us turn from it; and this pertains to the passion of despair. In like manner the arduous evil, considered as an evil, has the aspect of something to be shunned; and this belongs to the passion of fear: but it also contains a reason for tending to it, as attempting something arduous, whereby to escape being subject to evil; and this tendency is called daring. Consequently, in the irascible passions we find contrariety in respect of good and evil (as between hope and fear): and also contrariety according to approach and withdrawal in respect of the same term (as between daring and fear).

From what has been said the replies to the objections are evident. ________________________

THIRD ARTICLE [I-II, Q. 23, Art. 3]

Whether Any Passion of the Soul Has No Contrary?

Objection 1: It would seem that every passion of the soul has a contrary. For every passion of the soul is either in the irascible or in the concupiscible faculty, as stated above (A. 1). But both kinds of passion have their respective modes of contrariety. Therefore every passion of the soul has its contrary.

Obj. 2: Further, every passion of the soul has either good or evil for its object; for these are the common objects of the appetitive part. But a passion having good for its object, is contrary to a passion having evil for its object. Therefore every passion has a contrary.

Obj. 3: Further, every passion of the soul is in respect of approach or withdrawal, as stated above (A. 2). But every approach has a corresponding contrary withdrawal, and vice versa. Therefore every passion of the soul has a contrary.

On the contrary, Anger is a passion of the soul. But no passion is set down as being contrary to anger, as stated in Ethic. iv, 5. Therefore not every passion has a contrary.

I answer that, The passion of anger is peculiar in this, that it cannot have a contrary, either according to approach and withdrawal, or according to the contrariety of good and evil. For anger is caused by a difficult evil already present: and when such an evil is present, the appetite must needs either succumb, so that it does not go beyond the limits of sadness, which is a concupiscible passion; or else it has a movement of attack on the hurtful evil, which movement is that of anger. But it cannot have a movement of withdrawal: because the evil is supposed to be already present or past. Thus no passion is contrary to anger according to contrariety of approach and withdrawal.

In like manner neither can there be according to contrariety of good and evil. Because the opposite of present evil is good obtained, which can be no longer have the aspect of arduousness or difficulty. Nor, when once good is obtained, does there remain any other movement, except the appetite's repose in the good obtained; which repose belongs to joy, which is a passion of the concupiscible faculty.

Accordingly no movement of the soul can be contrary to the movement of anger, and nothing else than cessation from its movement is contrary thereto; thus the Philosopher says (Rhet. ii, 3) that "calm is contrary to anger," by opposition not of contrariety but of negation or privation.

From what has been said the replies to the objections are evident. ________________________

FOURTH ARTICLE [I-II, Q. 23, Art. 4]

Whether in the Same Power, There Are Any Passions, Specifically

Different, but Not Contrary to One Another?

Objection 1: It would seem that there cannot be, in the same power, specifically different passions that are not contrary to one another. For the passions of the soul differ according to their objects. Now the objects of the soul's passions are good and evil; and on this distinction is based the contrariety of the passions. Therefore no passions of the same power, that are not contrary to one another, differ specifically.

Obj. 2: Further, difference of species implies a difference of form. But every difference of form is in respect of some contrariety, as stated in Metaph. x, 8. Therefore passions of the same power, that are not contrary to one another, do not differ specifically.

Obj. 3: Further, since every passion of the soul consists in approach or withdrawal in respect of good or evil, it seems that every difference in the passions of the soul must needs arise from the difference of good and evil; or from the difference of approach and withdrawal; or from degrees in approach or withdrawal. Now the first two differences cause contrariety in the passions of the soul, as stated above (A. 2): whereas the third difference does not diversify the species; else the species of the soul's passions would be infinite. Therefore it is not possible for passions of the same power to differ in species, without being contrary to one another.