THIRD ARTICLE [I-II, Q. 90, Art. 3]

Whether the Reason of Any Man Is Competent to Make Laws?

Objection 1: It would seem that the reason of any man is competent to

make laws. For the Apostle says (Rom. 2:14) that "when the Gentiles,

who have not the law, do by nature those things that are of the law .

. . they are a law to themselves." Now he says this of all in

general. Therefore anyone can make a law for himself.

Obj. 2: Further, as the Philosopher says (Ethic. ii, 1), "the

intention of the lawgiver is to lead men to virtue." But every man

can lead another to virtue. Therefore the reason of any man is

competent to make laws.

Obj. 3: Further, just as the sovereign of a state governs the state,

so every father of a family governs his household. But the sovereign

of a state can make laws for the state. Therefore every father of a

family can make laws for his household.

_On the contrary,_ Isidore says (Etym. v, 10): "A law is an ordinance

of the people, whereby something is sanctioned by the Elders together

with the Commonalty."

_I answer that,_ A law, properly speaking, regards first and foremost

the order to the common good. Now to order anything to the common

good, belongs either to the whole people, or to someone who is the

viceregent of the whole people. And therefore the making of a law

belongs either to the whole people or to a public personage who has

care of the whole people: since in all other matters the directing of

anything to the end concerns him to whom the end belongs.

Reply Obj. 1: As stated above (A. 1, ad 1), a law is in a person not

only as in one that rules, but also by participation as in one that

is ruled. In the latter way each one is a law to himself, in so far

as he shares the direction that he receives from one who rules him.

Hence the same text goes on: "Who show the work of the law written in

their hearts."

Reply Obj. 2: A private person cannot lead another to virtue

efficaciously: for he can only advise, and if his advice be not

taken, it has no coercive power, such as the law should have, in

order to prove an efficacious inducement to virtue, as the

Philosopher says (Ethic. x, 9). But this coercive power is vested in

the whole people or in some public personage, to whom it belongs to

inflict penalties, as we shall state further on (Q. 92, A. 2, ad 3;

II-II, Q. 64, A. 3). Wherefore the framing of laws belongs to him

alone.

Reply Obj. 3: As one man is a part of the household, so a household

is a part of the state: and the state is a perfect community,

according to _Polit._ i, 1. And therefore, as the good of one man is

not the last end, but is ordained to the common good; so too the good

of one household is ordained to the good of a single state, which is

a perfect community. Consequently he that governs a family, can

indeed make certain commands or ordinances, but not such as to have

properly the force of law.

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Summa Theologica, Part I-II (Pars Prima Secundae) From the Complete American Edition · 第 585 / 746 题