Chapter XV.--The Lust and Desire of Sentient Things; Demons; Animals Sentient; So Also the Sun and the Moon and Stars; The Platonic Doctrine, Not the Christian.
Whence, then, come pleasure and desire? For these are the principal evils that they talk of and hate. Nor does matter appear to be anything else. That these things, indeed, only belong to animals which are endowed with sense, and that nothing else but that which has sense perceives desire and pleasure, is manifest. For what perception of pleasure and pain is there in a plant? What in the earth, water, or air? And the demons, if indeed they are living beings endowed with sense, for this reason, perhaps, are delighted with what has been instituted in regard to sacrifices, and take it ill when these are wanting to them; but nothing of this sort can be imagined with respect to God. Therefore those who say, "Why are animals affected by pleasure and pain?" should first make the complaint, "Why are these animals endowed with sense, or why do they stand in need of food?" For if animals were immortal, they would have been set free from corruption and increase; such as the sun and moon and stars, although they are endowed with sense. They are, however, beyond the power of these, and of such a complaint. But man, being able to perceive and to judge, and being potentially wise,--for he has the power to become so,--when he has received what is peculiar to himself, treads it under foot.
Chapter XVI.--Because Some are Wise, Nothing Prevents Others from Being So; Virtue is to Be Acquired by Diligence and Study; By a Sounder Philosophy Men are to Be Carried Onwards to the Good; The Common Study of Virtue Has by Christ Been Opened Up to All.
In general, it is worth while to inquire of these men, "Is it possible for no man to become good, or is it in the power of any one?" For if no man is wise, what of Manichæus himself? I pass over the fact that he not only calls others good, but he also says that they are able to make others such. But if one individual is entirely good, what prevents all from becoming good? For what is possible for one is possible also for all. And by the means by which one has become virtuous, by the same all may become so, unless they assert that the larger share of this virtue is intercepted by such. Again, therefore, first, What necessity is there for labour in submitting to discipline (for even whilst sleeping we may become virtuous), or what cause is there for these men rousing their hearers to hopes of good? For even though wallowing in the mire with harlots, they can obtain their proper good. But if discipline, and better instruction and diligence in acquiring virtue, make a man to become virtuous, let all become so, and that oft-repeated phrase of theirs, the unordered motion of matter, is made void. But it would be much better for them to say that wisdom is an instrument given by God to man, in order that by bringing round by degrees to good that which arises to them, from the fact of their being endowed with sense, out of desire or pleasure, it might remove from them the absurdities that flow from them. For thus they themselves who profess to be teachers of virtue would be objects of emulation for their purpose, and for their mode of life, and there would be great hopes that one day evils will cease, when all men have become wise. And this it seems to me that Jesus took into consideration; and in order that husbandmen, carpenters, builders, and other artisans, might not be driven away from good, He convened a common council of them altogether, and by simple and easy conversations He both raised them to a sense of God, and brought them to desire what was good.
Chapter XVII.--The Manichæan Idea of Virtue in Matter Scouted; If One Virtue Has Been Created Immaterial, the Rest are Also Immaterial; Material Virtue an Exploded Notion.
Moreover, how do they say, did God send divine virtue into matter? For if it always was, and neither is God to be understood as existing prior to it, nor matter either, then again, according to Manichæus, there are three first principles. Perhaps also, a little further on, there will appear to be many more. But if it be adventitious, and something which has come into existence afterwards, how is it void of matter? And if they make it to be a part of God, first, indeed, by this conception, they assert that God is composite and corporeal. But this is absurd, and impossible. And if He fashioned it, and is without matter, I wonder that they have not considered, neither the man himself, nor his disciples, that if (as the orthodox say, the things that come next in order subsist while God remains) God created this virtue of His own free-will, how is it that He is not the author of all other things that are made without the necessity of any pre-existent matter? The consequences, in truth, of this opinion are evidently absurd; but what does follow is put down next in order. Was it, then, the nature of this virtue to diffuse itself into matter? If it was contrary to its nature, in what manner is it intermingled with it? But if this was in accordance with its nature, it was altogether surely and always with matter. But if this be so, how is it that they call matter evil, which, from the beginning, was intermingled with the divine virtue? In what manner, too, will it be destroyed, the divine virtue which was mingled with it at some time or other seceding to itself? For that it preserves safely what is good, and likely to be productive of some other good to those to whom it is present, is more reasonable than that it should bring destruction or some other evil upon them.