10. (7) According to the ancient (sages) such are the properties of matter. "Matter is incorporeal because it differs from bodies. Matter is not lifeless, because it is neither intelligence, nor soul, nor anything that lives by itself. It is formless, variable, infinite, impotent; consequently, matter cannot be existence, but nonentity. Of course it is not nonentity in the same way that movement is nonentity; matter is nonentity really. It is an image and a phantom of extension, because it is the primary substrate of extension. It is impotence, and the desire for existence. The only reason that it persists is not rest (but change); it always seems to contain contraries, the great and small, the less and more, lack and excess. It is always "becoming," without ever persisting in its condition, or being able to come out of it. Matter is the lack of all existence; and, consequently, what matter seems to be is a deception. If, for instance, matter seems to be large, it really is small; like a mere phantom, it escapes and evanesces into nonentity, not by any change of place, but by its lack of reality. Consequently, the substrate of the images in matter consists of a lower image. That in which objects present appearances that differ according to their positions is a mirror, a mirror that seems crowded, though it possesses nothing, and which yet seems to be everything." OF THE PASSIBILITY OF THE BODY (8-19). 11. Passions (or, affections) refer to something destructible; for it is passion that leads to destruction; it is the same sort of being that can be affected, and can be destroyed. Incorporeal entities, however, are not subject to destruction; they either exist or not; in either case they are non-affectible. That which can be affected need not have this impassible nature, but must be subject to alteration or destruction by the qualities of things that enter into it and affect it; for that which in it subsists is not altered by the first chance entity. Consequently, matter is impassible, as by itself it possesses no quality. The forms that enter into and issue from matter (as a substrate) are equally impassible. That which is affected is the composite of form and matter, whose existence consists in the union of these two elements; for it is evidently subject to the action of contrary powers, and of the qualities of things which enter into it, and affect it. That is why the beings that derive their existence from something else, instead of possessing it by themselves, can likewise by virtue of their passivity, either live or not. On the contrary, the beings whose existence consists in an impassible life necessarily live permanently; likewise the things that do not live are equally impassible inasmuch as they do not live. Consequently, being changed and being affected refer only to the composite of form and matter, to the body, and not to matter. Likewise, to receive life and to lose