THIRD ARTICLE [I, Q. 83, Art. 3]

Whether Free-will Is an Appetitive Power?

Objection 1: It would seem that free-will is not an appetitive, but

a cognitive power. For Damascene (De Fide Orth. ii, 27) says that

"free-will straightway accompanies the rational nature." But reason

is a cognitive power. Therefore free-will is a cognitive power.

Obj. 2: Further, free-will is so called as though it were a free

judgment. But to judge is an act of a cognitive power. Therefore

free-will is a cognitive power.

Obj. 3: Further, the principal function of free-will is to choose.

But choice seems to belong to knowledge, because it implies a certain

comparison of one thing to another, which belongs to the cognitive

power. Therefore free-will is a cognitive power.

_On the contrary,_ The Philosopher says (Ethic. iii, 3) that choice

is "the desire of those things which are in us." But desire is an act

of the appetitive power: therefore choice is also. But free-will is

that by which we choose. Therefore free-will is an appetitive power.

_I answer that,_ The proper act of free-will is choice: for we say

that we have a free-will because we can take one thing while refusing

another; and this is to choose. Therefore we must consider the nature

of free-will, by considering the nature of choice. Now two things

concur in choice: one on the part of the cognitive power, the other

on the part of the appetitive power. On the part of the cognitive

power, counsel is required, by which we judge one thing to be

preferred to another: and on the part of the appetitive power, it is

required that the appetite should accept the judgment of counsel.

Therefore Aristotle (Ethic. vi, 2) leaves it in doubt whether choice

belongs principally to the appetitive or the cognitive power: since

he says that choice is either "an appetitive intellect or an

intellectual appetite." But (Ethic. iii, 3) he inclines to its being

an intellectual appetite when he describes choice as "a desire

proceeding from counsel." And the reason of this is because the

proper object of choice is the means to the end: and this, as such,

is in the nature of that good which is called useful: wherefore since

good, as such, is the object of the appetite, it follows that choice

is principally an act of the appetitive power. And thus free-will is

an appetitive power.

Reply Obj. 1: The appetitive powers accompany the apprehensive, and

in this sense Damascene says that free-will straightway accompanies

the rational power.

Reply Obj. 2: Judgment, as it were, concludes and terminates counsel.

Now counsel is terminated, first, by the judgment of reason;

secondly, by the acceptation of the appetite: whence the Philosopher

(Ethic. iii, 3) says that, "having formed a judgment by counsel, we

desire in accordance with that counsel." And in this sense choice

itself is a judgment from which free-will takes its name.

Reply Obj. 3: This comparison which is implied in the choice belongs

to the preceding counsel, which is an act of reason. For though the

appetite does not make comparisons, yet forasmuch as it is moved by

the apprehensive power which does compare, it has some likeness of

comparison by choosing one in preference to another.

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Summa Theologica, Part I (Prima Pars) From the Complete American Edition · 第 516 / 722 题