Of Intention

Of Intention — St. Thomas Aquinas asks: Whether intention is an act of the intellect or of the will?; Whether intention is only of the last end?; Whether one can intend two things at the same time?; Whether intention of the end is the same act as the volition of the means?; Whether intention is within the competency of irrational animals?.

We must now consider Intention: concerning which there are five points of inquiry:

Article 1: Whether intention is an act of the intellect or of the will?

Augustine says (De Trin. xi, 4,8,9) that "the intention of the will unites the sight to the object seen; and the images retained in the memory, to the penetrating gaze of the soul's inner thought." Therefore intention is an act of the will.

Intention, as the very word denotes, signifies, "to tend to something." Now both the action of the mover and the movement of thing moved, tend to something. But that the movement of the thing moved tends to anything, is due to the action of the mover. Consequently intention belongs first and principally to that which moves to the end: hence we say that an architect or anyone who is in authority, by his command moves others to that which he intends. Now the will moves all the other powers of the soul to the end, as shown above (). Wherefore it is evident that intention, properly speaking, is an act of the will.

Article 2: Whether intention is only of the last end?

There is but one last end of human wills, viz. Happiness, as stated above (). If, therefore, intentions were only of the last end, men would not have different intentions: which is evidently false.

As stated above (), intention regards the end as a terminus of the movement of the will. Now a terminus of movement may be taken in two ways. First, the very last terminus, when the movement comes to a stop; this is the terminus of the whole movement. Secondly, some point midway, which is the beginning of one part of the movement, and the end or terminus of the other. Thus in the movement from A to C through B, C is the last terminus, while B is a terminus, but not the last. And intention can be both. Consequently though intention is always of the end, it need not be always of the last end.

Article 3: Whether one can intend two things at the same time?

Art imitates nature. Now nature intends two purposes by means of one instrument: thus "the tongue is for the purpose of taste and speech" (De Anima ii, 8). Therefore, for the same reason, art or reason can at the same time direct one thing to two ends: so that one can intend several ends at the same time.

The expression "two things" may be taken in two ways: they may be ordained to one another or not so ordained. And if they be ordained to one another, it is evident, from what has been said, that a man can intend several things at the same time. For intention is not only of the last end, as stated above (), but also of an intermediary end. Now a man intends at the same time, both the proximate and the last end; as the mixing of a medicine and the giving of health.

But if we take two things that are not ordained to one another, thus also a man can intend several things at the same time. This is evident from the fact that a man prefers one thing to another because it is the better of the two. Now one of the reasons for which one thing is better than another is that it is available for more purposes: wherefore one thing can be chosen in preference to another, because of the greater number of purposes for which it is available: so that evidently a man can intend several things at the same time.

Article 4: Whether intention of the end is the same act as the volition of the means?

The means in relation to the end, are as the mid-space to the terminus. Now it is all the same movement that passes through the mid-space to the terminus, in natural things. Therefore in things pertaining to the will, the intention of the end is the same movement as the willing of the means.

The movement of the will to the end and to the means can be considered in two ways. First, according as the will is moved to each of the aforesaid absolutely and in itself. And thus there are really two movements of the will to them. Secondly, it may be considered accordingly as the will is moved to the means for the sake of the end: and thus the movement of the will to the end and its movement to the means are one and the same thing. For when I say: "I wish to take medicine for the sake of health," I signify no more than one movement of my will. And this is because the end is the reason for willing the means. Now the object, and that by reason of which it is an object, come under the same act; thus it is the same act of sight that perceives color and light, as stated above (). And the same applies to the intellect; for if it consider principle and conclusion absolutely, it considers each by a distinct act; but when it assents to the conclusion on account of the principles, there is but one act of the intellect.

Article 5: Whether intention is within the competency of irrational animals?

Intention of an end implies ordaining something to an end: which belongs to reason. Since therefore irrational animals are void of reason, it seems that they do not intend an end.

As stated above (), to intend is to tend to something; and this belongs to the mover and to the moved. According, therefore, as that which is moved to an end by another is said to intend the end, thus nature is said to intend an end, as being moved to its end by God, as the arrow is moved by the archer. And in this way, irrational animals intend an end, inasmuch as they are moved to something by natural instinct. The other way of intending an end belongs to the mover; according as he ordains the movement of something, either his own or another's, to an end. This belongs to reason alone. Wherefore irrational animals do not intend an end in this way, which is to intend properly and principally, as stated above ().