On the contrary, That which is natural is common to things animate and inanimate. But fear is not in things inanimate. Therefore there is no natural fear.
I answer that, A movement is said to be natural, because nature inclines thereto. Now this happens in two ways. First, so that it is entirely accomplished by nature, without any operation of the apprehensive faculty: thus to have an upward movement is natural to fire, and to grow is the natural movement of animals and plants. Secondly, a movement is said to be natural, if nature inclines thereto, though it be accomplished by the apprehensive faculty alone: since, as stated above (Q. 10, A. 1), the movements of the cognitive and appetitive faculties are reducible to nature as to their first principle. In this way, even the acts of the apprehensive power, such as understanding, feeling, and remembering, as well as the movements of the animal appetite, are sometimes said to be natural.
And in this sense we may say that there is a natural fear; and it is distinguished from non-natural fear, by reason of the diversity of its object. For, as the Philosopher says (Rhet. ii, 5), there is a fear of "corruptive evil," which nature shrinks from on account of its natural desire to exist; and such fear is said to be natural. Again, there is a fear of "painful evil," which is repugnant not to nature, but to the desire of the appetite; and such fear is not natural. In this sense we have stated above (Q. 26, A. 1; Q. 30, A. 3; Q. 31, A. 7) that love, desire, and pleasure are divisible into natural and non-natural.
But in the first sense of the word "natural," we must observe that certain passions of the soul are sometimes said to be natural, as love, desire, and hope; whereas the others cannot be called natural. The reason of this is because love and hatred, desire and avoidance, imply a certain inclination to pursue what is good or to avoid what is evil; which inclination is to be found in the natural appetite also. Consequently there is a natural love; while we may also speak of desire and hope as being even in natural things devoid of knowledge. On the other hand the other passions of the soul denote certain movements, whereto the natural inclination is nowise sufficient. This is due either to the fact that perception or knowledge is essential to these passions (thus we have said, Q. 31, AA. 1, 3; Q. 35, A. 1, that apprehension is a necessary condition of pleasure and sorrow), wherefore things devoid of knowledge cannot be said to take pleasure or to be sorrowful: or else it is because such like movements are contrary to the very nature of natural inclination: for instance, despair flies from good on account of some difficulty; and fear shrinks from repelling a contrary evil; both of which are contrary to the inclination of nature. Wherefore such like passions are in no way ascribed to inanimate beings.
Thus the Replies to the Objections are evident. ________________________
FOURTH ARTICLE [I-II, Q. 41, Art. 4]
Whether the Species of Fear Are Suitably Assigned?
Objection 1: It would seem that six species of fear are unsuitably assigned by Damascene (De Fide Orth. ii, 15); namely, "laziness, shamefacedness, shame, amazement, stupor, and anxiety." Because, as the Philosopher says (Rhet. ii, 5), "fear regards a saddening evil." Therefore the species of fear should correspond to the species of sorrow. Now there are four species of sorrow, as stated above (Q. 35, A. 8). Therefore there should only be four species of fear corresponding to them.
Obj. 2: Further, that which consists in an action of our own is in our power. But fear regards an evil that surpasses our power, as stated above (A. 2). Therefore laziness, shamefacedness, and shame, which regard our own actions, should not be reckoned as species of fear.
Obj. 3: Further, fear is of the future, as stated above (AA. 1, 2).
But "shame regards a disgraceful deed already done," as Gregory of
Nyssa [*Nemesius, De Nat. Hom. xx.] says. Therefore shame is not a
species of fear.