EXISTENCE OF EVIL IS NECESSARY AS LAST MATERIAL DEGREE OF BEING.
Here follows still another demonstration of the necessity of evil. Since good does not remain alone, evil must necessarily exist by issuing from the good.[183] We might express this differently, as the degradation and exhaustion (of the divine power, which, in the whole hierarchic series of successive emanations weakens from degree to degree). There must, therefore, be a last degree of being, beyond which nothing further can be begotten, and that is evil. Just as the existence of something after a first (Good) is necessary, so must also a last degree (of being) be necessary. Now the last degree is matter, and contains nothing more of the First; (and, as matter and evil are identical,) the existence of evil is necessary.
MATTER IS CAUSE OF EVIL, EVEN IF CORPOREAL.
8. It may still be objected that it is not matter that makes us wicked; for it is not matter that produces ignorance and perverted appetites. If, indeed, these appetites mislead us to evil as a result of the perversity of the body, we must seek its cause, not in matter, but in form (in the qualities of the bodies). These, for instance, are heat, cold, bitterness, pungency, and the other qualities of the bodily secretions; or, the atonic condition or inflammation of certain organs; or, certain dispositions which produce the difference of appetites; and, if you please, false opinions. Evil, therefore, is form rather than matter. Even under this (mistaken) hypothesis we are none the less driven to acknowledge that matter is the evil. A quality does not always produce the same results within or outside of matter; thus the form of the axe without iron does not cut. The forms that inhere in matter are not always what they would be if they were outside of it. The ("seminal) reasons" when inhering in matter are by it corrupted and filled with its nature. As fire, when separate from matter, does not burn; so form, when remaining by itself, effects what it would if it were in matter. Matter dominates any principle that appears within it, alters it, and corrupts it by imparting thereto its own nature, which is contrary to the Good. It does not indeed substitute cold for heat, but it adds to the form—as, for instance, to the form of fire—its formless substance; to figure adding its shapelessness; to measure, its excess and lack, proceeding thus until it has degraded things, transubstantiating them into its own nature. That is the reason that, in the nutrition of animals, what has been ingested does not remain what it was before. The foods that enter into the body of a dog, for instance, are by assimilation transformed into blood and canine secretions, and, in general, are transformed according to the animal that receives them. Thus even under the hypothesis that evils are referred to the body, matter is the cause of evils.
MASTERY OF THESE CORPOREAL DISPOSITIONS IS NOT EASY.
It may be objected that one ought to master these dispositions of the body. But the principle that could triumph over them is pure only if it flee from here below. The appetites which exercise the greatest force come from a certain complexion of the body, and differ according to its nature. Consequently, it is not easy to master them. There are men who have no judgment, because they are cold and heavy on account of their bad constitution. On the contrary, there are others who, because of their temperament, are light and inconstant. This is proved by the difference of our own successive dispositions. When we are gorged, we have appetites and thoughts that differ from those we experience when starved; and our dispositions vary even according to the degrees of satiety.
DEFINITION OF PRIMARY AND SECONDARY EVIL.
In short, the primary Evil is that which by itself lacks measure. The secondary evil is that which accidentally becomes formless, either by assimilation or participation. In the front rank is the darkness; in the second that which has become obscured. Thus vice, being in the soul the result of ignorance and formlessness, is of secondary rank. It is not absolute Evil, because, on its side, virtue is not absolute Good; it is good only by its assimilation and participation with the Good.