Geary and Paul are discussing philosophy. A: Why is a cup called a cup B: Because it is a cup (Q. E. D.) Paul calls B's assertion "irrefutable" with the implication that it is also "univerifiable", perhaps. Geary is interested in the _qua_. I mentioned that but Walter O. ignored it, and gave us a lesson of things a philosopher does which are _not_ philosophical (e.g. go to the bathroom). I disagree. The hylemorphism is a unity, and _whatever a philosopher_ does is, 'philosophical'. In this philosophers are different from dentists. Anyway, qua is perhaps the most important philosophical term. It's _not_ strictly philosophical. My maid uses it! But 'perseity' only _she_ uses: the perseity [< post-classical Latin perseitas self-subsistence (c1300 in Duns Scotus) < classical Latin per s by itself (see PER SE adv.), corresponding to ancient Greek ' , as used by Aristotle, Analytica posteriora 73a26 + -ts (see -TY suffix1; cf. -ITY suffix). Cf. French perséité (1736).] The quality of being predicated essentially of a subject; an instance of this. Also: the quality or fact of existing independently. 1588 A. FRAUNCE Lawiers Logike sig. ¶3v, And yet, notwithstanding all their Perseities,..hee that would not gather gould out of Aquinas dregges,..I shall thinke him as wise. 1694 R. BURTHOGGE Ess. Reason ix. 269 Subsistence is a mode of Existence, to which it adds Perseity. 1876 Contemp. Rev. 28 1006 One novelty..in philosophythe exclusion of the per-se-ity and must-be-ity, which cut such a figure in what goes for metaphysics. 1912 Jrnl. Philos., Psychol. & Sci. Methods 9 529 But radical empiricism can yield no metaphysical principle like the God of scholasticism, of such attributes as unity, aseity, perseity, infinity, necessity, immutability, etc. 1962 L. VON MISES Ultimate Found. Econ. Sci. v. 79 In denying perseity, i.e., independent existence of their own, to the collectives, one does not in the least deny the reality of the effects brought about by the cooperation of individuals. 2002 Theol. Stud. 28 854 Neither the rational nature by itself, nor the perseity (being a per se existent) of subsistence, can constitute the ultimate specific difference for personhood. The Germans regarded that Graeco-Roman compounds were good, but German ones were better. "Als ob" is a fascinating one that corresponds to Geary's qua si quid, reading the conditional 'si', as Geary does, as 'as' -- als ob, 'as if'. E.g. While a chair can have the perseity of a chair, it can be used as a table (als ob -- i.e. as it were a table). Ditto a philosopher can be treated as if he were an idiot, and that is the reading one sometimes gets from McCreery. On the other hand a publicist can be treated as 'someone living in Japan'. JL Planning your summer road trip? Check out AOL Travel Guides.