As to rough, united, rare and dense[269] these could not be called qualities; for they do not consist only in a relative separation or reapproximation of the parts of a body, and do not proceed everywhere from the inequality or equality of position; if they did, they might be regarded as qualities. Lightness and weight, also, could be correctly classified, if carefully studied. In any case, lightness is only a verbal similarity (a "homonym") unless it be understood to mean diminution of weight. In this same class might also be found leanness and slimness, which form a class different from the four preceding ideas.
PSYCHOLOGICAL THEORY OF QUALITY.
12. What other scheme of analysis of quality could we find, if the above were declared unsatisfactory? Must we distinguish first the qualities of the soul from those of the body, and then analyse the latter according to the senses, relating them to sight, hearing, taste, smell and touch?
To begin with, how can the qualities of the soul be divided? Will they be related to the faculty of desire, to anger, or reason? Will they be divided according to their suitable operations, or according to their useful or harmful character? In this case, would we distinguish several ways of being useful or harmful? Should we then likewise divide the properties of the bodies according to the difference of their effects, or according to their useful or harmless character, since this character is a property of quality? Surely; to be useful or harmful seems to be the property of both the quality, and the thing qualified. Otherwise, we should have to seek some other classification.
RELATION BETWEEN THE THING QUALIFIED AND THE QUALITY.
How can the thing qualified by a quality refer to the quality? This must be studied, because the thing qualified and the quality do not belong to a common kind. If the man capable of boxing be related to the quality, why should not the same quality obtain between the active man and activity? If then the active man be something qualified, "activity" and "passivity" should not be referred to relation. It would seem preferable to relate the active man to the quality if he be active by virtue of a power, for a power is a quality; but if the power be essential, in so far as it is a power, it is not something relative, nor even something qualified. We should not consider that activity corresponds to increase; for the increase, so far as it increases, stands in relation only to the less; while activity is such by itself. To the objection that activity, so far as it is such, is something qualified, it might be answered that, at the same time, as far as it can act on something else, and that it is thus called active, it is something relative. In this case the man capable of boxing and the art of boxing itself must be in relation. For the art of boxing implies a relation; all the knowledge it imparts is relative to something else. As to the other arts, or at least, as to the greater number of other arts, it may, after examination, be said that they are qualities, so far as they give a disposition to the soul; as far as they act, they are active, and, from this standpoint, they refer to something else, and are relative; and besides, they are relative in the sense that they are habituations.
ACTIVITY DOES NOT ALTER THE QUALITY.
Will we therefore have to admit that activity, which is activity only because it is a quality, is something substantially different from quality? In animated beings, especially in those capable of choice because they incline towards this or that thing, activity has a really substantial nature. What is the nature of the action exercised by the inanimate powers that we call qualities? Is it participation in their qualities by whatever approaches them? Further, if the power which acts on something else simultaneously experiences (or "suffers"), how can it still remain active? For the greater thing, which by itself is three feet in size, is great or small only by the relation established between it, and something else (smaller). It might indeed be objected that the greater thing and the smaller thing become such only by participation in greatness or smallness. Likewise, what is both "active" and "passive" becomes such in participating in "activity" and "passivity."
ARE THE SENSE-WORLD AND THE INTELLIGIBLE SEPARATE, OR CLASSIFIABLE TOGETHER?
Can the qualities seen in the sense-world, and those that exist in the intelligible world, be classified together in one kind? This question demands an answer from those[270] who claim that there are also qualities in the intelligible world. Should it also be asked of those who do not admit of the existence on high of kinds, but who limit themselves to attributing some habit to Intelligence? It is evident that Wisdom exists in Intelligence; if this Wisdom be homonymous (similar in name only) with the wisdom which we know here below, it is not reckoned among sense-things; if, on the contrary it be synonymous (similar in nature also) with the wisdom which we know here below, quality would be found in intelligible entities, as well as in sense-things (which is false); unless indeed it be recognized that all intelligible things are essences, and that thought belongs among them.