9. Secondly, the two ruling powers exist as the directors of men toward certain ends, as will be shown further on. But had man remained in the state of innocence in which God made him, he would have required no such direction. These ruling powers are therefore remedies against the infirmity of sin. Since on the fourth day man was not only not a sinner, but was not even An abstruse bit of mediæval reasoning existent, the creation of a remedy would have been purposeless, which is contrary to divine goodness. Foolish indeed would be the physician who should make ready a plaster for the abscess of a man not yet born. Therefore it cannot be asserted that God made the two ruling powers on the fourth day; and consequently the meaning of Moses cannot have been what it is supposed to be.

10. Also, in order to be tolerant, we may refute this fallacy by distinction. Refutation by distinction deals more gently with an adversary, for it shows him to be not absolutely wrong, as does refutation by destruction. I say, then, that although the moon may have abundant light only as she receives it from the sun, it does not follow on that account that the moon herself owes her existence to the sun. It must be recognized that the essence of the moon, her strength, and her function, are not one and the same thing. Neither in her essence, her strength, nor her function taken absolutely, does the moon owe her existence to the sun, for her movement is impelled by her own force and her influence by her own rays. Besides, she has a certain light of her own, as is shown in eclipse. It is in order to fulfill her function better and more potently that she borrows from the sun abundance of light, and works thereby more effectively.

11. In like manner, I say, the temporal power receives from the spiritual neither its existence, nor its strength, which is its authority, nor even its function, taken absolutely. But well Why the argument from the sun and moon fails for her does she receive therefrom, through the light of grace which the benediction of the chief pontiff sheds upon it in heaven and on earth, strength to fulfill her function more perfectly. So the argument was at fault in form, because the predicate of the conclusion is not a term of the major premise, as is evident. The syllogism runs thus: The moon receives light from the sun, which is the spiritual power; the temporal ruling power is the moon; therefore the temporal receives authority from the spiritual. They introduce "light" as the term of the major, but "authority" as predicate of the conclusion, which two things we have seen to be diverse in subject and significance.

VIII. 1. From the same gospel they quote the saying of Christ to Peter, "Whatsoever thou shalt loose on earth shall be loosed in heaven" [Matt., xvi. 19], and understand this saying to refer alike to all the Apostles, according to the text of Matthew and John [Matt., xviii. 18 and John, xx. 23]. They reason from Argument from the prerogative of the keys committed to Peter this that the successor of Peter has been granted of God power to bind and loose all things, and then infer that he has power to loose the laws and decrees of the Empire, and to bind the laws and decrees of the temporal kingdom. Were this true, their inference would be correct.

2. But we must reply to it by making a distinction against the major premise of the syllogism which they employ. Their syllogism is this: Peter had power to bind and loose all things; the successor of Peter has like power with him; therefore the successor of Peter has power to loose and bind all things. From this they infer that he has power to loose and bind the laws and decrees of the Empire.

3. I concede the minor premise, but the major only with distinction. Wherefore I say that "all," the symbol of the universal which is implied in "whatsoever," is never distributed beyond the scope of the distributed term. When I say, "All animals run," the distribution of "all" comprehends whatever comes under the genus "animal." But when I say, "All men run," the symbol of the universal refers only to whatever comes under the term "man." And when I say, "All grammarians run," the distribution is narrowed still further.

4. Therefore we must always determine what it is over which the symbol of the universal is distributed; then, from the recognized nature and scope of the distributed term, will be easily apparent the extent of the distribution. Now, were "whatsoever" to be understood absolutely when it is said, "Whatsoever thou shalt bind," he would certainly have the power they claim; nay, he would have even greater power—he would be able to loose a wife from her husband, and, while the man still lived, bind her to another—a thing he can in nowise do. He would be able to absolve me, while impenitent—a thing which God Himself cannot do.

5. So it is evident that the distribution of the term under discussion is to be taken, not absolutely, but relatively to something else. A consideration of the concession to which the distribution is subjoined will make manifest this related something. Dante's interpretation of the Scripture in question Christ said to Peter, "I will give unto thee the keys of the kingdom of heaven;" that is, I will make thee doorkeeper of the kingdom of heaven. Then He adds, "and whatsoever," that is, "everything which," and He means thereby, "Everything which pertains to that office thou shalt have power to bind and loose." And thus the symbol of the universal which is implied in "whatsoever" is limited in its distribution to the prerogative of the keys of the kingdom of heaven. Understood thus, the proposition is true, but understood absolutely, it is obviously not. Therefore I conclude that, although the successor of Peter has authority to bind and loose in accordance with the requirements of the prerogative granted to Peter, it does not follow, as they claim, that he has authority to bind and loose the decrees or statutes of empire, unless they prove that this also belongs to the office of the keys. But further on we shall demonstrate that the contrary is true.

XIII. 1. Now that we have stated and rejected the errors on which those chiefly rely who declare that the authority of the Roman Prince is dependent on the Roman Pontiff,[613] we must return and demonstrate the truth of that question which we propounded for discussion at the beginning. The truth will be evident enough if it can be shown, under the principle of inquiry agreed upon, that imperial authority derives immediately from the summit of all being, which is God. And this will be shown, whether we prove that imperial authority does not derive from that of the Church (for the dispute concerns no other authority), or whether we prove simply that it derives immediately from God.

2. That ecclesiastical authority is not the source of imperial authority is thus verified. A thing non-existent, or devoid of active force, cannot be the cause of active force in a thing possessing that quality in full measure. But before the Church existed, or while it lacked power to act, the Empire had active force in The Church (or papacy) is not the source of imperial authority full measure. Hence the Church is the source, neither of acting power nor of authority in the Empire, where power to act and authority are identical. Let A be the Church, B the Empire, and C the power or authority of the Empire. If, A being non-existent, C is in B, the cause of C's relation to B cannot be A, since it is impossible that an effect should exist prior to its cause. Moreover, if, A being inoperative, C is in B, the cause of C's relation to B cannot be A, since it is indispensable for the production of effect that the cause should be in operation previously, especially the efficient cause which we are considering here.