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

Reply Obj. 2: Given that the act of the will is fixed on some good, no circumstances can make that act bad. Consequently when it is said that a man wills a good when he ought not, or where he ought not, this can be understood in two ways. First, so that this circumstance is referred to the thing willed. And thus the act of the will is not fixed on something good: since to will to do something when it ought not to be done, is not to will something good. Secondly, so that the circumstance is referred to the act of willing. And thus, it is impossible to will something good when one ought not to, because one ought always to will what is good: except, perhaps, accidentally, in so far as a man by willing some particular good, is prevented from willing at the same time another good which he ought to will at that time. And then evil results, not from his willing that particular good, but from his not willing the other. The same applies to the other circumstances.

Reply Obj. 3: Ignorance of circumstances excuses malice of the will, in so far as the circumstance affects the thing willed: that is to say, in so far as a man ignores the circumstances of the act which he wills. ________________________

THIRD ARTICLE [I-II, Q. 19, Art. 3]

Whether the Goodness of the Will Depends on Reason?

Objection 1: It would seem that the goodness of the will does not depend on reason. For what comes first does not depend on what follows. But the good belongs to the will before it belongs to reason, as is clear from what has been said above (Q. 9, A. 1). Therefore the goodness of the will does not depend on reason.

Obj. 2: Further, the Philosopher says (Ethic. vi, 2) that the goodness of the practical intellect is "a truth that is in conformity with right desire." But right desire is a good will. Therefore the goodness of the practical reason depends on the goodness of the will, rather than conversely.

Obj. 3: Further, the mover does not depend on that which is moved, but vice versa. But the will moves the reason and the other powers, as stated above (Q. 9, A. 1). Therefore the goodness of the will does not depend on reason.

On the contrary, Hilary says (De Trin. x): "It is an unruly will that persists in its desires in opposition to reason." But the goodness of the will consists in not being unruly. Therefore the goodness of the will depends on its being subject to reason.

I answer that, As stated above (AA. 1, 2), the goodness of the will depends properly on the object. Now the will's object is proposed to it by reason. Because the good understood is the proportionate object of the will; while sensitive or imaginary good is proportionate not to the will but to the sensitive appetite: since the will can tend to the universal good, which reason apprehends; whereas the sensitive appetite tends only to the particular good, apprehended by the sensitive power. Therefore the goodness of the will depends on reason, in the same way as it depends on the object.

Reply Obj. 1: The good considered as such, i.e. as appetible, pertains to the will before pertaining to the reason. But considered as true it pertains to the reason, before, under the aspect of goodness, pertaining to the will: because the will cannot desire a good that is not previously apprehended by reason.

Reply Obj. 2: The Philosopher speaks here of the practical intellect, in so far as it counsels and reasons about the means: for in this respect it is perfected by prudence. Now in regard to the means, the rectitude of the reason depends on its conformity with the desire of a due end: nevertheless the very desire of the due end presupposes on the part of reason a right apprehension of the end.

Reply Obj. 3: The will moves the reason in one way: the reason moves the will in another, viz. on the part of the object, as stated above (Q. 9, A. 1). ________________________

FOURTH ARTICLE [I-II, Q. 19, Art. 4]

Whether the Goodness of the Will Depends on the Eternal Law?

Objection 1: It would seem that the goodness of the human will does not depend on the eternal law. Because to one thing there is one rule and one measure. But the rule of the human will, on which its goodness depends, is right reason. Therefore the goodness of the will does not depend on the eternal law.

Obj. 2: Further, "a measure is homogeneous with the thing measured" (Metaph. x, 1). But the eternal law is not homogeneous with the human will. Therefore the eternal law cannot be the measure on which the goodness of the human will depends.

Obj. 3: Further, a measure should be most certain. But the eternal law is unknown to us. Therefore it cannot be the measure on which the goodness of our will depends.

On the contrary, Augustine says (Contra Faust. xxii, 27) that "sin is a deed, word or desire against the eternal law." But malice of the will is the root of sin. Therefore, since malice is contrary to goodness, the goodness of the will depends on the eternal law.

I answer that, Wherever a number of causes are subordinate to one another, the effect depends more on the first than on the second cause: since the second cause acts only in virtue of the first. Now it is from the eternal law, which is the Divine Reason, that human reason is the rule of the human will, from which the human derives its goodness. Hence it is written (Ps. 4:6, 7): "Many say: Who showeth us good things? The light of Thy countenance, O Lord, is signed upon us": as though to say: "The light of our reason is able to show us good things, and guide our will, in so far as it is the light (i.e. derived from) Thy countenance." It is therefore evident that the goodness of the human will depends on the eternal law much more than on human reason: and when human reason fails we must have recourse to the Eternal Reason.

Reply Obj. 1: To one thing there are not several proximate measures; but there can be several measures if one is subordinate to the other.

Reply Obj. 2: A proximate measure is homogeneous with the thing measured; a remote measure is not.

Reply Obj. 3: Although the eternal law is unknown to us according as it is in the Divine Mind: nevertheless, it becomes known to us somewhat, either by natural reason which is derived therefrom as its proper image; or by some sort of additional revelation. ________________________

FIFTH ARTICLE [I-II, Q. 19, Art. 5]

Whether the Will Is Evil When It Is at Variance with Erring Reason?

Objection 1: It would seem that the will is not evil when it is at variance with erring reason. Because the reason is the rule of the human will, in so far as it is derived from the eternal law, as stated above (A. 4). But erring reason is not derived from the eternal law. Therefore erring reason is not the rule of the human will. Therefore the will is not evil, if it be at variance with erring reason.

Obj. 2: Further, according to Augustine, the command of a lower authority does not bind if it be contrary to the command of a higher authority: for instance, if a provincial governor command something that is forbidden by the emperor. But erring reason sometimes proposes what is against the command of a higher power, namely, God Whose power is supreme. Therefore the decision of an erring reason does not bind. Consequently the will is not evil if it be at variance with erring reason.

Obj. 3: Further, every evil will is reducible to some species of malice. But the will that is at variance with erring reason is not reducible to some species of malice. For instance, if a man's reason err in telling him to commit fornication, his will in not willing to do so, cannot be reduced to any species of malice. Therefore the will is not evil when it is at variance with erring reason.

On the contrary, As stated in the First Part (Q. 79, A. 13), conscience is nothing else than the application of knowledge to some action. Now knowledge is in the reason. Therefore when the will is at variance with erring reason, it is against conscience. But every such will is evil; for it is written (Rom. 14:23): "All that is not of faith"—i.e. all that is against conscience—"is sin." Therefore the will is evil when it is at variance with erring reason.