doing, and I cannot act well unless I first learn what is good; and if I can understand that, I shall thereby perceive what is evil, that is, opposite to good.
Chap. vi.—Peter's authority.
"But I should like that one of you, and not Peter, should answer what I have said; for it is not fitting to take words and instruction at his hand, with questions; but when he gives a deliverance on any subject, that should be held without answering again. And therefore let us keep him as an umpire; so that if at any time our discussion does not come to an issue, he may declare what seems good to him, and so give an undoubted end to doubtful matters. And now therefore I could believe, content with his sole opinion, if he expressed any opinion; and this is what I shall do at last. Yet I wish first to see if it is possible by discussion to find what is sought. My wish therefore is, that Clement should begin first, and should show if there is any good or evil in substance or in actions."
Chap. vii.—Clement's argument.
To this I answered: "Since indeed you wish to learn from me if there is any good or evil in nature or in act, or whether it is not rather that men, prejudiced by custom, think some things to be good, and others to be evil, forasmuch as they have made a division among themselves of common things, which ought, as you say, to be as common as the air and the sunshine; I think that I ought not to bring before you any statements from any other quarter than from those studies in which you are well versed, and which you support, so that what I say you will receive without hesitation. You assign certain boundaries of all the elements and the heavenly bodies, and these, you say, meet in some without hurt, as in marriages; but in others they are hurtfully united, as in adulteries. And you say that some things are general to all, but other things do not belong to all, and are not general. But not to make a long discussion, I shall speak briefly of the matter. The earth which is dry is in need of the addition and admixture of water, that it may be able to produce fruits, without which
