Confining ourselves (as I have already observed that Aristotle does in the Categories) to those perceptible or physical subjects which every one admits,[72] and keeping clear of metaphysical entities, we shall see that respecting any one of these subjects the nine questions here put may all be put and answered; that the two last are most likely to be put in regard to some living being; and that the last can seldom be put in regard to any other subject except a person (including man, woman, or child). Every individual person falls necessarily under each of the ten Categories; belongs to the Genus animal, Species man; he is of a certain height and bulk; has certain qualities; stands in certain relations to other persons or things; is doing something and suffering something; is in a certain place; must be described with reference to a certain moment of time; is in a certain attitude or posture; is clothed or equipped in a certain manner. Information of some kind may always be given respecting him under each of these heads; he is always by necessity _quantus_, but not always of any particular quantity. Until such information is given, the concrete individual is not known under conditions thoroughly determined.[73] Moreover each head is separate and independent, not resolvable into any of the rest, with a reservation, presently to be noticed, of Relation in its most comprehensive meaning. When I say of a man, that he is at home, lying down, clothed with a tunic, &c., I do not predicate of him any quality, action, or passion. The information which I give belongs to three other heads distinct from these last, and distinct also from each other. If you suppress the two last of the ten Categories and leave only the preceding eight, under which of these eight are you to rank the predicates, Sokrates is _lying down_, Sokrates is _clothed with a tunic_, &c.? The necessity for admitting the ninth and tenth Categories (_Jacere_ and _Habere_) as separate general heads in the list, is as great as the necessity for admitting most of the Categories which precede. The ninth and tenth are of narrower comprehension,[74] and include a smaller number of distinguishable varieties, than the preceding; but they are not the less separate heads of information. So, among the chemical elements enumerated by modern science, some are very rarely found; yet they are not for that reason the less entitled to a place in the list. [Footnote 72: Ibid. Z. p. 1028, b. 8, seq.: p. 1042, a. 25. [Greek: ai( ai)sthêtai\ ou)si/ai--ai( o(mologou/menai ou)si/ai].]