Then follows the command about murder. Now murder is a sure destruction. He, then, that wishes to extirpate the true doctrine of God and of immortality, in order to introduce falsehood, alleging either that the universe is not under Providence, or that the world is uncreated, or affirming anything against true doctrine, is most pernicious. _The Eighth Commandment._ And after this is the command respecting theft. As, then, he that steals what is another’s, doing great wrong, rightly incurs ills suitable to his deserts; so also does he, who arrogates to himself divine works by the art of the statuary or the painter, and pronounces himself to be the maker of animals and plants. Likewise those, too, who mimic the true philosophy are thieves. Whether one be a husbandman or the father of a child, he is an agent in depositing seeds. But it is God who, ministering the growth and perfection of all things, brings the things produced to what is in accordance with their nature. But the most, in common also with the philosophers, attribute growth and changes to the stars as the primary cause, robbing the Father of the universe, as far as in them lies, of His tireless might. The elements, however, and the stars--that is, the administrative powers--are ordained for the accomplishment of what is essential to the administration, and are influenced and moved by what is commanded to them, in the way in which the Word of the Lord leads, since it is the nature of the divine power to work all things secretly. He, accordingly, who alleges that he has conceived or made anything which pertains to creation, will suffer the punishment of his impious audacity. _The Tenth Commandment._ And the tenth is the command respecting all lusts. As, then, he who entertains unbecoming desires is called to account; in the same way he is not allowed to desire things false, or to suppose that, of created objects, those that are animate have power of themselves, and that inanimate things can at all save or hurt. And should one say that an antidote cannot heal or hemlock kill, he is unwittingly deceived. For none of these operates except one makes use of the plant and the drug; just as the axe does not without one to cut with it, or a saw without one sawing with it. And as they do not work by themselves, but have certain physical qualities which accomplish their proper work by the exertion of the artisan; so also, by the universal providence of God, through the medium of secondary causes, the operative power is propagated in succession to individual objects. CHAPTER XVII. PHILOSOPHY CONVEYS ONLY AN IMPERFECT KNOWLEDGE OF GOD.