We thus see that all the predicates, not only under the Category which Aristotle terms _Ad Aliquid_, but also under all the last nine Categories, are relative. Indeed the work of predication is always relative. The express purpose, as well as the practical usefulness, of a significant predicate is, to carry the mind of the hearer either to a comparison or to a general notion which is the result of past comparisons. But though each predicate connotes Relation, each connotes a certain _fundamentum_ besides, which gives to the Relation its peculiar character. Relations of Quantity are not the same as relations of Quality; the predicates of the former connote a _fundamentum_ different from the predicates of the latter, though in both the meaning conveyed is relative. In fact, every predicate or concrete general name is relative, or connotes a Relation to something else, actual or potential, beyond the thing named. The only name not relative is the Proper name, which connotes no attributes, and cannot properly be used as a predicate (so Aristotle remarks), but only as a Subject.[83] Sokrates, Kallias, Bukephalus &c., denotes the _Hoc Aliquid_ or _Unum Numero_, which, when pronounced alone, indicates some concrete aggregate (as yet unknown) which may manifest itself to my senses, but does not, so far as the name is concerned, involve necessary reference to anything besides; though even these names, when one and the same name continues to be applied to the same object, may be held to connote a real or supposed continuity of past or future existence, and become thus to a certain extent relative. [Footnote 83: You may make Sokrates a predicate, in the proposition, [Greek: to\ leuko\n e)kei=no Sôkra/tês e)sti/n], but Aristotle dismisses this as an irregular or perverse manner of speaking (see Analytic. Priora, i. p. 43, a. 35; Analyt. Poster. i. p. 83, a. 2-16). Alexander calls these propositions [Greek: ai( para\ phu/sin prota/seis] (see Schol. ad Metaphys. [Greek: D]. p. 1017, a. 23).