Part II (Pars Prima Secundae) Part 151 (1/2)

Reply Obj. 1: He who in a case of necessity acts beside the letter of the law, does not judge the law; but of a particular case in which he sees that the letter of the law is not to be observed.

Reply Obj. 2: He who follows the intention of the lawgiver, does not interpret the law simply; but in a case in which it is evident, by reason of the manifest harm, that the lawgiver intended otherwise.

For if it be a matter of doubt, he must either act according to the letter of the law, or consult those in power.

Reply Obj. 3: No man is so wise as to be able to take account of every single case; wherefore he is not able sufficiently to express in words all those things that are suitable for the end he has in view. And even if a lawgiver were able to take all the cases into consideration, he ought not to mention them all, in order to avoid confusion: but should frame the law according to that which is of most common occurrence.

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QUESTION 97

OF CHANGE IN LAWS (In Four Articles)

We must now consider change in laws: under which head there are four points of inquiry:

(1) Whether human law is changeable?

(2) Whether it should be always changed, whenever anything better occurs?

(3) Whether it is abolished by custom, and whether custom obtains the force of law?

(4) Whether the application of human law should be changed by dispensation of those in authority?

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FIRST ARTICLE [I-II, Q. 97, Art. 1]

Whether Human Law Should Be Changed in Any Way?

Objection 1: It would seem that human law should not be changed in any way at all. Because human law is derived from the natural law, as stated above (Q. 95, A. 2). But the natural law endures unchangeably.

Therefore human law should also remain without any change.

Obj. 2: Further, as the Philosopher says (Ethic. v, 5), a measure should be absolutely stable. But human law is the measure of human acts, as stated above (Q. 90, AA. 1, 2). Therefore it should remain without change.

Obj. 3: Further, it is of the essence of law to be just and right, as stated above (Q. 95, A. 2). But that which is right once is right always. Therefore that which is law once, should be always law.

_On the contrary,_ Augustine says (De Lib. Arb. i, 6): ”A temporal law, however just, may be justly changed in course of time.”

_I answer that,_ As stated above (Q. 91, A. 3), human law is a dictate of reason, whereby human acts are directed. Thus there may be two causes for the just change of human law: one on the part of reason; the other on the part of man whose acts are regulated by law.

The cause on the part of reason is that it seems natural to human reason to advance gradually from the imperfect to the perfect. Hence, in speculative sciences, we see that the teaching of the early philosophers was imperfect, and that it was afterwards perfected by those who succeeded them. So also in practical matters: for those who first endeavored to discover something useful for the human community, not being able by themselves to take everything into consideration, set up certain inst.i.tutions which were deficient in many ways; and these were changed by subsequent lawgivers who made inst.i.tutions that might prove less frequently deficient in respect of the common weal.

On the part of man, whose acts are regulated by law, the law can be rightly changed on account of the changed condition of man, to whom different things are expedient according to the difference of his condition. An example is proposed by Augustine (De Lib. Arb. i, 6): ”If the people have a sense of moderation and responsibility, and are most careful guardians of the common weal, it is right to enact a law allowing such a people to choose their own magistrates for the government of the commonwealth. But if, as time goes on, the same people become so corrupt as to sell their votes, and entrust the government to scoundrels and criminals; then the right of appointing their public officials is rightly forfeit to such a people, and the choice devolves to a few good men.”

Reply Obj. 1: The natural law is a partic.i.p.ation of the eternal law, as stated above (Q. 91, A. 2), and therefore endures without change, owing to the unchangeableness and perfection of the Divine Reason, the Author of nature. But the reason of man is changeable and imperfect: wherefore his law is subject to change. Moreover the natural law contains certain universal precepts, which are everlasting: whereas human law contains certain particular precepts, according to various emergencies.

Reply Obj. 2: A measure should be as enduring as possible. But nothing can be absolutely unchangeable in things that are subject to change. And therefore human law cannot be altogether unchangeable.

Reply Obj. 3: In corporal things, right is predicated absolutely: and therefore, as far as itself is concerned, always remains right. But right is predicated of law with reference to the common weal, to which one and the same thing is not always adapted, as stated above: wherefore rect.i.tude of this kind is subject to change.

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SECOND ARTICLE [I-II, Q. 97, Art. 2]

Whether Human Law Should Always Be Changed, Whenever Something Better Occurs?