13.07.2015 Views

On Kenny on Aquinas on Being - Fordham University Faculty

On Kenny on Aquinas on Being - Fordham University Faculty

On Kenny on Aquinas on Being - Fordham University Faculty

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>Aquinas</strong> with Frege (who is prominently featured in the discussi<strong>on</strong> of <strong>Aquinas</strong>’ c<strong>on</strong>cepti<strong>on</strong>throughout the book).Anth<strong>on</strong>y <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> is <strong>on</strong>e of those historians of philosophy who have not <strong>on</strong>ly the necessaryscholarly background to deal with their historical subject, but also the willingness and ability “tostraddle different paradigms” (to adopt Kuhn’s happy phrase), which is required for making theirhistorical subject directly relevant to c<strong>on</strong>temporary thought, as opposed to presenting them asmerely historically interesting museum pieces. <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s work <strong>on</strong> <strong>Aquinas</strong> is always intriguingprecisely for this reas<strong>on</strong>. His applicati<strong>on</strong> of the fundamental insights of the classics of analyticphilosophy (Frege, Russell, Wittgenstein, Ryle, etc.) in explaining and critically evaluating<strong>Aquinas</strong>’ thought is always thought-provoking both for the <strong>Aquinas</strong> scholar and for studentsmaking their first acquaintance with <strong>Aquinas</strong>.In fact (if I may be allowed a pers<strong>on</strong>al remark in the vein of <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s pers<strong>on</strong>al remarks <strong>on</strong> hisrelati<strong>on</strong>ship to <strong>Aquinas</strong>), I for <strong>on</strong>e can pers<strong>on</strong>ally testify to this. More than twenty years ago, itwas <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s thought-provoking criticism of <strong>Aquinas</strong>’ proofs for God’s existence that got mestarted <strong>on</strong> my own research project (despite several fundamental disagreements I had with<str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s approach already at that time), which also involves a great deal of “paradigmstraddling”between medieval and modern logic and metaphysics. So, in general, I am not <strong>on</strong>lythoroughly sympathetic to <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s goals of making <strong>Aquinas</strong> accessible and directly relevant toc<strong>on</strong>temporary philosophy, but I am also pers<strong>on</strong>ally indebted to <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s work for helping merealize the importance of these goals.However, turning now to my critical observati<strong>on</strong>s c<strong>on</strong>cerning his approach, I find the particularsort of “paradigm-straddling” exercised by <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> to be a rather risky business. For, as I willargue, this sort of approach essentially involves the danger of the rider’s falling off <strong>on</strong> <strong>on</strong>e side.In less metaphorical terms, when we engage a historical author by simply applying our ownmodern c<strong>on</strong>cepts in interpreting his claims, rather than trying to acquire his c<strong>on</strong>cepts, then thereis always the serious danger of misinterpreting the author, who was thinking in a radicallydifferent c<strong>on</strong>ceptual framework. Indeed, this approach becomes especially precarious when theexpositi<strong>on</strong> turns into criticism. In such cases, simply using our modern c<strong>on</strong>cepts in interpretingand judging the author’s claims set by the standards of those c<strong>on</strong>cepts often leads to simplytalking past the author, instead of genuinely engaging, let al<strong>on</strong>e refuting, his thought. As anygood Wittgensteinian (and n<strong>on</strong>-Wittgensteinian) ought to know, it is ludicrous to claim victoryby yelling “Checkmate!” in a game of poker. But this is precisely what <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> seems to be doingwhenever he is yelling “You are not a good enough Fregean!” at <strong>Aquinas</strong>.For what <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> identifies as “the most fundamental” problem in “<strong>Aquinas</strong>’ theory of esse” isindeed the worst crime <strong>on</strong>e can commit against Frege in c<strong>on</strong>necti<strong>on</strong> with the noti<strong>on</strong> of existence,namely, “the failure to make a clear distincti<strong>on</strong> between existence <strong>on</strong> the <strong>on</strong>e hand, and being inits multiple forms <strong>on</strong> the other” (p. 195, cf. p. 192). However, it is precisely for this fundamentalreas<strong>on</strong> that, according to <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>, <strong>Aquinas</strong> is “thoroughly c<strong>on</strong>fused” <strong>on</strong> being (p. v), and thus hisdoctrine is “<strong>on</strong>e of the least admirable of his c<strong>on</strong>tributi<strong>on</strong>s to philosophy” (p. viii).But in my view <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s percepti<strong>on</strong> of a fundamental problem here <strong>on</strong> <strong>Aquinas</strong>’ part is preciselythe radix omnium errorum [root of all errors] <strong>on</strong> <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s part. For, as I will argue, <strong>Aquinas</strong>’“failure to make a clear distincti<strong>on</strong> between existence, <strong>on</strong> the <strong>on</strong>e hand, and being in its multipleforms, <strong>on</strong> the other” is part and parcel of his markedly n<strong>on</strong>-Fregean doctrine, which is in no way2


of c<strong>on</strong>tradicti<strong>on</strong>, so too, in exactly the same, mathematically precise sense, the c<strong>on</strong>cept ofexistence is not definable for individuals.<str<strong>on</strong>g>On</str<strong>on</strong>g>e of the main arguments for this positi<strong>on</strong> is that if the c<strong>on</strong>cept of existence were a first-levelc<strong>on</strong>cept, then all negative existential claims, denying the property of existence to their subject,would have to be c<strong>on</strong>tradictory. For example, if we understood the claim ‘Santa Claus does notexist’ in the sense that Santa has the property of not existing (or, equivalently, lacks the propertyof existing), then the claim would clearly have to be c<strong>on</strong>tradictory, for Santa has to be there tohave (or lack) any property in the first place. But of course we can truly claim that Santa does notexist, whence this claim cannot be c<strong>on</strong>tradictory, and so the analysis according to which it wouldbe is clearly wr<strong>on</strong>g. Therefore, the <strong>on</strong>ly way we can make good sense of the true claim that Santadoes not exist is by analyzing it as involving the Fregean sec<strong>on</strong>d-level c<strong>on</strong>cept, asserting, forexample, that the individual c<strong>on</strong>cept of Santa has nothing corresp<strong>on</strong>ding to it, that is to say, thatnothing is identical with Santa: ~(∃x)(x = Santa Claus). 3Accordingly, for some analytic philosophers the <strong>on</strong>ly legitimate c<strong>on</strong>cept of existence is theFregean sec<strong>on</strong>d-level c<strong>on</strong>cept, and so, according to them, any metaphysical claim that cannot bemade sense of using this c<strong>on</strong>cept is simply meaningless. A case in point is Rudolf Carnap’sfamous paper: “The Eliminati<strong>on</strong> of Metaphysics through the Logical Analysis of Language”. 4Given the c<strong>on</strong>temporary flourishing of analytic metaphysics, it should be clear by now that thissort of aggressive applicati<strong>on</strong> of the Fregean c<strong>on</strong>cept led into a cul de sac in the recent history ofphilosophy. But even without going into the issue of the changing attitudes towards metaphysicsin analytic philosophy, it should be clear that in certain cases we can make good sense ofexistence (or n<strong>on</strong>-existence) claims which obviously involve a first-level c<strong>on</strong>cept of existence.For example, <strong>on</strong>e certainly can truly say, talking about the ancient lighthouse: “The Pharos ofAlexandria no l<strong>on</strong>ger exists”. A similar idea is expressed even more vividly by the frustrated petshop customer in M<strong>on</strong>ty Pyth<strong>on</strong>’s famous “parrot-sketch”, holding the stiff corpse of a bird in hishand: “This parrot is no more! He has ceased to be! ‘E’s expired and g<strong>on</strong>e to meet ‘is maker!‘E’s a stiff! Bereft of life, ‘e rests in peace! If you hadn’t nailed ‘im to the perch ‘e’d be pushingup the daisies! ‘Is metabolic processes are now ‘istory! ‘E’s off the twig! ‘E’s kicked the bucket,‘e’s shuffled off ‘is mortal coil, run down the curtain and joined the bleedin’ choir invisible!!THIS IS AN EX-PARROT!!”In these cases, the speakers are clearly not claiming that nothing corresp<strong>on</strong>ds to the c<strong>on</strong>cepts ofthe grammatical subjects of their sentences. <str<strong>on</strong>g>On</str<strong>on</strong>g> the c<strong>on</strong>trary, by means of these c<strong>on</strong>cepts, theyare successfully picking out the individual things they are talking about. But of course noteverything that <strong>on</strong>e can talk about actually exists. That is precisely the idea expressed by the3 Alternatively, we may take the name ‘Santa Claus’ as an abbreviati<strong>on</strong> of a definite descripti<strong>on</strong> that can then beeliminated à la Russell, or we may take it to express a comm<strong>on</strong> term intended to have <strong>on</strong>e individual in itsextensi<strong>on</strong>, à la Quine. In any case, the result is the eliminati<strong>on</strong> of an “apparent” first level c<strong>on</strong>cept attributing an“apparent” property of existence to an “apparent” individual referred to by an “apparent” singular term, in favor ofan analysis involving a comm<strong>on</strong> term the extensi<strong>on</strong> of which is asserted to be empty by means of a sec<strong>on</strong>d-levelc<strong>on</strong>cept, an existential quantifier.4 Rudolf Carnap: “The Eliminati<strong>on</strong> of Metaphysics through Logical Analysis of Language” (trans. by Arthur Pap,1932), In: Logical Positivism, A J. Ayer, ed., Glencoe: Free Press, 1960, pp. 60-81)4


claim that the Pharos of Alexandria no l<strong>on</strong>ger exists, or by the claim that the parrot, the deadbody of which the frustrated customer is holding in his hand, is no more. To exist, in this sense,is to be <strong>on</strong>e of the things that presently populate our actual universe. But the Pharos (or theparrot), which used to be <strong>on</strong>e those things, is no l<strong>on</strong>ger <strong>on</strong>e of those things. (To be sure, therecently discovered ruins of the Pharos, or the carcass of the parrot, may still be <strong>on</strong>e of thosethings; but the ruins are not the Pharos, and the carcass is not the parrot.) And of course we cancertainly truly assert without any paradox that something that used to be <strong>on</strong>e of the things presentin our universe is no l<strong>on</strong>ger present in our universe. 5 Indeed, in the same way, we can just astruly claim that what will be or could be <strong>on</strong>e of these things is not actually <strong>on</strong>e of these things.More recent analytic philosophers, including <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>, therefore, take a more accommodatingapproach: they allow some legitimate uses of the words ‘is’, ‘exists’ and their derivatives, inwhich these phrases express a first-level c<strong>on</strong>cept. But they would still insist that genuineexistential claims, such as ‘There is a God’ (as opposed to ‘God is [alive]’), can <strong>on</strong>ly be madesense of as involving the Fregean sec<strong>on</strong>d-level c<strong>on</strong>cept (cf. pp. 61-62). Accordingly, what <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>calls ‘existence’ (or ‘specific existence’) throughout his book is this Fregean sec<strong>on</strong>d-levelc<strong>on</strong>cept, to be strictly distinguished from any first-level c<strong>on</strong>cept of ‘being’ (or ‘individualexistence’). 6However, such a sec<strong>on</strong>d-level c<strong>on</strong>cept is nowhere to be found in medieval philosophy. Whatmight come the closest to it is the c<strong>on</strong>cept corresp<strong>on</strong>ding to what medieval logicians called signaparticularia [particular signs], namely, the syncategoremata that prefixed to an indefinitepropositi<strong>on</strong>, such as ‘Homo est currens’ (‘A man is running’), would yield a particularpropositi<strong>on</strong>, such as ‘Quidam homo est currens’ (‘Some man is running’), as opposed to auniversal propositi<strong>on</strong>, which is the result of prefixing signa universalia [universal signs], such as‘Omnis homo est currens’ (‘Every man is running’). What medieval logicians would call aparticular propositi<strong>on</strong>, in modern logic classes we are taught to represent by an existentiallyquantified formula, and so it might seem that the signum particulare of a Latin propositi<strong>on</strong>expresses the c<strong>on</strong>cept of the Fregean existential quantifier. The reas<strong>on</strong> is that <strong>on</strong> the Fregeanreading the propositi<strong>on</strong> ‘Quidam homo est currens’ is to be analyzed as ‘For some x, x is a manand x is running’, which is then taken to be the same as ‘There is/exists an x, such that x is a manand x is running’, i.e., ‘(∃x)(x is a man and x is running)’ – voilà, an “existence-statement”.However, despite the equivalence of this quasi-formula with the Latin propositi<strong>on</strong>, this isdefinitely not the kind of analysis medieval logicians would have provided for this propositi<strong>on</strong>.This is clearly shown by the simple fact that if we attach a negati<strong>on</strong> to the copula of the Latin5 For more discussi<strong>on</strong> of this sense of ‘exists’ see Geach’s classic paper: “What Actually Exists”, Proceedings of theAristotelian Society, Supp. vol. 42(1968), pp. 7-16.6 Cf.: “In the history of philosophy this distincti<strong>on</strong> was most sharply emphasized by Gottlob Frege, who taught us todistinguish, under pain of gross fallacy, between first-level c<strong>on</strong>cepts corresp<strong>on</strong>ding to predicates and sec<strong>on</strong>d-levelc<strong>on</strong>cepts corresp<strong>on</strong>ding to quantifiers.” p. 195. More recent work in free logic, as well as historical work <strong>on</strong>medieval logic, shows that the “gross fallacy” c<strong>on</strong>cerning the noti<strong>on</strong> of existence need not emerge in logical systemsthat tie “existential import” not to the existential quantifier, but to the affirmative copula, and which distinguishpropositi<strong>on</strong>al negati<strong>on</strong> from term negati<strong>on</strong>, as was generally the case in medieval logic. See the papers referred to inthe next note.5


propositi<strong>on</strong>, then the resulting particular negative propositi<strong>on</strong> cannot adequately be representedby simply adding a negati<strong>on</strong> to the formula: it is a well-known fact about medieval logic that‘Quidam homo n<strong>on</strong> est currens’ is not adequately represented by ‘For some x, x is a man and x isnot running’. The reas<strong>on</strong> is that medieval philosophers, who would in general (with theinteresting excepti<strong>on</strong> of Abelard) take this particular negative propositi<strong>on</strong> to be the c<strong>on</strong>tradictoryof a universal affirmative c<strong>on</strong>strued with existential import, would regard this propositi<strong>on</strong> as truewhen there are no humans, whereas the Fregean quasi-formula in that case would not be true. 7Therefore, we can quite c<strong>on</strong>fidently assert that despite the fact that the Latin propositi<strong>on</strong> and theFregean formula express equivalent thoughts (in the sense that the <strong>on</strong>e is true just in case theother is and vice versa), they do not have the same “logical syntax”, and thus they do not involvethe same c<strong>on</strong>cepts combined in the same ways, for what is taken to be the c<strong>on</strong>tradictory negati<strong>on</strong>of the Latin propositi<strong>on</strong> is not equivalent to what would be the corresp<strong>on</strong>ding negati<strong>on</strong> of thequasi-formula. 8But however that may be, in general, the equivalence or n<strong>on</strong>-equivalence of two thoughts cannotdetermine the identity or n<strong>on</strong>-identity of the c<strong>on</strong>cepts making them up. C<strong>on</strong>sider the followingsimple, modern example: (1) ‘No x is such that x is a centaur’ is equivalent to (2) ‘For every x, ifx is a centaur, then x is pink and x is not pink’. Both (1) and (2) are true just in case theextensi<strong>on</strong> of ‘x is a centaur’ is empty, that is, just in case there are no centaurs. Yet, could we <strong>on</strong>this basis assert that (1’) ‘No x is such that x is ____’ expresses the same c<strong>on</strong>cept as (2’) ‘Forevery x, if x is ____, then x is pink and x is not pink’? Obviously not. Indeed, if some<strong>on</strong>e werewilling to bite the bullet and say that they do express the same c<strong>on</strong>cept, then he would also haveto agree <strong>on</strong> the same grounds that (3’) ‘For every x, if x is ____, then x is blue and x is not blue’expresses the same c<strong>on</strong>cept as well. But this would clearly be absurd to accept (for then (2’) and(3’) would have to express the same c<strong>on</strong>cept, which is certainly not the case). In fact, since alllogical truths are logically equivalent, some<strong>on</strong>e holding that equivalence is sufficient for thesameness of c<strong>on</strong>ceptual structure would have to hold that all logical truths involve the samec<strong>on</strong>cepts combined in the same ways, which is again patently absurd. (Just compare theequivalent tautologies ‘((A ⊃ A) · (A ⊃ ~A)) ⊃ (A ⊃ ~A)’ and ‘(A ⊃ (B ∨ C)) ⊃ (~(~C · ~B) ∨~A)’ – do these have the same c<strong>on</strong>ceptual structure?). So, it is certainly possible to haveequivalent thoughts with different c<strong>on</strong>ceptual structures, which means that the equivalence ofthoughts is not sufficient for the identity of the c<strong>on</strong>cepts making up these thoughts. Therefore,we definitely need the “more fine-grained” technique for identifying and distinguishing c<strong>on</strong>ceptssuggested by Frege’s ideas, in terms of the characteristic semantic functi<strong>on</strong>s of the phrasesexpressing these c<strong>on</strong>cepts.According to this “more fine-grained” technique, however, it should be clear that the signumparticulare in ‘Quidam homo est currens’ cannot be characterized by means of the same7 For detailed discussi<strong>on</strong>s of the issues involved see Pars<strong>on</strong>s, Terence, “The Traditi<strong>on</strong>al Square of Oppositi<strong>on</strong>”, TheStanford Encyclopedia of Philosophy (Spring 1999 Editi<strong>on</strong>), Edward N. Zalta (ed.), URL =http://plato.stanford.edu/archives/spr1999/entries/square/, and Klima, G. (2001) “Existence and Reference inMedieval Logic”, in: A. Hieke and E. Morscher (eds.) New Essays in Free Logic, 2001, Kluwer AcademicPublishers, Dordrecht, pp. 197-226.8 Again, for more detailed discussi<strong>on</strong>s of this apparently tricky issue, see the articles referred to in the previous note.6


to God as c<strong>on</strong>veying the noti<strong>on</strong> of ‘everlasting existence’, which is at best implied in our noti<strong>on</strong>(‘nominal essence’) of divinity, he does not see how <strong>Aquinas</strong>’ thesis could make a str<strong>on</strong>ger claimc<strong>on</strong>cerning God than it does c<strong>on</strong>cerning creatures. After all, he claims, just as (1) for God to beGod is for Him to be, so too, (2) for Fido to be a dog is for him to be (p. 45).In fact, I think this last statement is perfectly correct, but <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> can <strong>on</strong>ly understand it asexpressing the necessary equivalences of [1] ‘God is God’ and ‘God exists’ <strong>on</strong> the <strong>on</strong>e hand, and[2] ‘Fido is a dog’ and ‘Fido exists’, <strong>on</strong> the other, and this is why he does not see how (1) canmake a str<strong>on</strong>ger claim than (2).In c<strong>on</strong>necti<strong>on</strong> with this objecti<strong>on</strong> we should note in the first place that if we assume, as <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>regularly does, that the necessary equivalence of thoughts is sufficient for the sameness of theirc<strong>on</strong>ceptual structure, and that ‘___exists’ is used here univocally, which <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> does notquesti<strong>on</strong> at all, then the equivalences of the sentences in [1] and [2] should also guarantee thesameness of the c<strong>on</strong>cepts of ‘___ is God’, ‘___exists’, and ‘___ is a dog’, which is not <strong>on</strong>lyabsurd, but blasphemous. But if ‘___ exists’ is supposed to c<strong>on</strong>vey the same (first-level) c<strong>on</strong>ceptof existence, i.e., it is used univocally, in both [1] and [2], and necessary equivalence is sufficientfor the sameness of c<strong>on</strong>cepts, then the c<strong>on</strong>clusi<strong>on</strong> is inevitable. For <strong>on</strong> the assumpti<strong>on</strong> of thesufficiency of equivalence for the sameness of c<strong>on</strong>ceptual structure, the phrases ‘___ is God’ and‘___ exists’ in ‘God is God’ and ‘God exists’ should c<strong>on</strong>vey the same c<strong>on</strong>cept. But if ‘___exists’ is used univocally in both [1] and [2], i.e., it c<strong>on</strong>veys the same c<strong>on</strong>cept in [2] as it does in[1], then the same c<strong>on</strong>cept must be c<strong>on</strong>veyed by the phrase ‘___ is a dog’ as well, given theequivalence of ‘Fido is a dog’ and ‘Fido exists’.Therefore, it should be clear that for a proper understanding of <strong>Aquinas</strong>’ claim we need the more“fine-grained” analysis of his c<strong>on</strong>cepts I alluded to earlier. Following Peter Geach’s lead in his“Form and Existence”, 15 let us characterize the c<strong>on</strong>cept expressed by a comm<strong>on</strong> term F by afuncti<strong>on</strong> that for an individual u yields u’s individualized F-ness, whether it is actual or not, andwhether it is the same as u or not. We may designate a value of such a functi<strong>on</strong> as the significateof F in respect of u: SGT(F)(u). Accordingly, SGT(‘dog’)(Fido) is what the term ‘dog’ signifiesin Fido, namely, Fido’s canine nature, whereas SGT(‘exists’)(Fido) is what the (first-level)predicate ‘exists’ signifies in Fido, namely, his act of existence, his canine life.With this notati<strong>on</strong> at hand, we may express <strong>Aquinas</strong>’ claim of the real distincti<strong>on</strong> between Fido’sessence and existence as follows: SGT(‘dog’)(Fido) ≠ SGT(‘exists’)(Fido). That is to say, Fido’scanine nature is not his canine life, whatever each is in itself. To be sure, we may not know in aclear a distinct fashi<strong>on</strong> what Fido’s canine nature is, for we may not know the essential definiti<strong>on</strong>of a dog. 16 Still we do have some c<strong>on</strong>cept of this nature, insofar as we have the c<strong>on</strong>cept of dog as15 Geach, P.T.: “Form and Existence”, Proceedings of the Aristotelian Society, 55(1954-5); reprinted in his God andthe Soul, L<strong>on</strong>d<strong>on</strong>: Routledge & Kegan Paul, 1969, pp. 42-64.16 Well, perhaps, with the advance of genetics we will know it, just as with the advance of chemistry we havelearned the essential definiti<strong>on</strong>s of chemical elements in terms of their atomic numbers. In this c<strong>on</strong>necti<strong>on</strong> it may beworth noting that modern chemistry quite interestingly c<strong>on</strong>firmed an Aristotelian idea often cited by <strong>Aquinas</strong>,according to which the essences of things are like numbers, in which the additi<strong>on</strong> or subtracti<strong>on</strong> of a unit varies thespecies of that number (i.e., adding <strong>on</strong>e to the number of the species dyads, we get the species of triads, etc.). In the10


a specific sort of animal. In the same way, we may not know in a clear and distinct manner whatcanine life is; still we do have some c<strong>on</strong>cept of it. But this much is certainly sufficient forsensibly making the claim that they are or they are not identical. In any case, it should be clearthat even if it is true that Fido’s life is actual if and <strong>on</strong>ly if his canine nature is actual, that is, Fidoexists/is alive if and <strong>on</strong>ly if he is a dog, this does not entail that Fido’s existence or canine life isthe same as his canine nature.In general, the necessary co-occurrence of two things need not entail their identity. For example,necessarily, whatever is triangular is trilateral, and vice versa. So, the triangularity of any objectis necessarily co-occurrent with its trilaterality. Still, this does not mean that the triangularity ofany object is identical with its trilaterality: its having three sides is not the same property of anobject as its having three angles (or, for that matter, its having three vertices or three medians,etc.). That is to say, even if necessarily, u is triangular if and <strong>on</strong>ly if u is trilateral, i.e.,necessarily, u’s triangularity occurs whenever u’s trilaterality occurs and vice versa, still,SGT(‘triangular’)(u) ≠ SGT(‘trilateral’)(u), u’s triangularity is not the same thing as u’strilaterality.But then it is definitely possible to make a str<strong>on</strong>ger claim about the identity of existence andessence in a thing than the claim asserting the necessary co-occurrence of the two. That is to say,even if Fido exists if and <strong>on</strong>ly if he is a dog, which means that his canine life is necessarily cooccurrentwith his canine nature, this does not amount to claiming the identity of essence andexistence in Fido, whence it would be a str<strong>on</strong>ger claim to assert the identity of the two.Therefore, claiming the identity of essence and existence in God is also a str<strong>on</strong>ger claim than themere equivalence of ‘God is God’ and ‘God exists’.But this is a nicety apparently inaccessible to <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>. Since he never tries to understand <strong>Aquinas</strong>’noti<strong>on</strong> of existence within <strong>Aquinas</strong>’ own logical framework, in the framework of the so-called“inherence theory of predicati<strong>on</strong>”, <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> simply cannot see the possibility of thisinterpretati<strong>on</strong>. 17 Had <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> been willing to learn <strong>Aquinas</strong>’ c<strong>on</strong>cepts, instead of merely trying to“rec<strong>on</strong>struct” (up to the level of logical equivalence) <strong>Aquinas</strong>’s thoughts using his own Fregeanc<strong>on</strong>cepts, he could have realized that within <strong>Aquinas</strong>’ c<strong>on</strong>ceptual framework it is quite possibleto provide a much str<strong>on</strong>ger interpretati<strong>on</strong> of <strong>Aquinas</strong>’ thesis, which is immune to his criticism. 18But despite <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s occasi<strong>on</strong>al willingness to bring a first-level c<strong>on</strong>cept of being to bear <strong>on</strong> hisinterpretati<strong>on</strong> and evaluati<strong>on</strong> of <strong>Aquinas</strong>’ doctrine, most of the time he is so blinded by his ownunquesti<strong>on</strong>ed Fregean assumpti<strong>on</strong>s that he does not use this interpretati<strong>on</strong>al opti<strong>on</strong> even when itis begging for being recognized. This is the clearest in the case of <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s treatment of <strong>Aquinas</strong>’Periodic Table of Elements, the additi<strong>on</strong> or subtracti<strong>on</strong> of a prot<strong>on</strong>, the unit determining the atomic number of anelement, does indeed vary the species.17 For a more detailed discussi<strong>on</strong> of the issue of what sort of logical framework is needed for the properinterpretati<strong>on</strong> of <strong>Aquinas</strong>’ thesis, see Klima, G. (2002) “C<strong>on</strong>temporary ‘Essentialism’ vs. Aristotelian Essentialism”,in: J. Haldane, (ed.), Mind, Metaphysics, and Value in the Thomistic and Analytic Traditi<strong>on</strong>s, Notre Dame, pp. 175-194.18 For further explanati<strong>on</strong>s, al<strong>on</strong>g with distincti<strong>on</strong>s of the several, yet analogical senses of ‘being’ in <strong>Aquinas</strong>, seeKlima, G.: “The Semantic Principles Underlying Saint Thomas <strong>Aquinas</strong>’s Metaphysics of <strong>Being</strong>”, MedievalPhilosophy and Theology, 5(1996), pp. 87-141.11


argument for the thesis of the real distincti<strong>on</strong> of essence and existence in creatures (and thecorresp<strong>on</strong>ding identity thereof in God) <strong>on</strong> pages 34-46 of this book.In order to make clear what I find to be totally mistaken in <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s treatment, let me firstprovide the following, somewhat tendentious reformulati<strong>on</strong> of <strong>Aquinas</strong>’ famous argument asfollows:(1) Whatever does not bel<strong>on</strong>g to the understanding of any thing is extrinsic to its real,individualized essence, but (2) its individual act of existence does not bel<strong>on</strong>g to theunderstanding of any (created) thing; therefore, (3) its individual act of existence is extrinsic toany (created) thing’s real, individualized essence.As is well-known, <strong>Aquinas</strong> supports what is stated in premise (2) here with examples. It ispossible, he points out, to understand what a man is or what a phoenix is without knowingwhether either of these actually exists. As with the somewhat tendentious reformulati<strong>on</strong> I meantto indicate, the point of the argument is to establish that the individual act of being of a creatureis distinct from its individualized essence signified by its quidditative definiti<strong>on</strong> or (less clearlyand distinctly) by any of its substantial predicates, say, the predicate ‘F’ (‘man’ or ‘phoenix’). Itis, therefore, a “deeply disturbing problem”, not of <strong>Aquinas</strong>’ argument, but of <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s owninterpretati<strong>on</strong> of the argument that he takes it to c<strong>on</strong>cern what he calls “specific existence” (theFregean quantifier, as opposed to the individual act of being of a thing that is F) (pp. 35, 42) and“the meaning of the word ‘F’” (rather than the real essence of something that is F).To be sure, in his interpretati<strong>on</strong> <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> takes it for granted that a phoenix is a mythical bird,which therefore cannot have a real essence. However, for <strong>Aquinas</strong>, the fictitious character ofphoenix was by no means a known fact. After all, Isidore of Seville, whom <strong>Aquinas</strong> frequentlycites, discusses the phoenix al<strong>on</strong>g with birds known to exist (such as eagles and ostriches). Also,the examples with which <strong>Aquinas</strong> groups the phoenix-example together are obviously real,natural phenomena (man, eclipse, cf. p. 62). In fact, the eclipse-example is the prime example inAristotle’s Posterior Analytics of a natural phenomen<strong>on</strong> whose essence we know by means of itsquidditative definiti<strong>on</strong> (“the privati<strong>on</strong> of the mo<strong>on</strong>’s light by the interpositi<strong>on</strong> of the earthbetween the sun and the mo<strong>on</strong>”). We may <strong>on</strong>ly not know whether it actually exists (say, becauseof a cloudy sky). Therefore, when <strong>Aquinas</strong> is talking about understanding the essence of thething without knowing the existence of the thing, he means understanding the real essence of areal thing (whether distinctly, by means of its quidditative definiti<strong>on</strong>, or c<strong>on</strong>fusedly, by means ofsome of its essential predicates), but not knowing whether the real thing in questi<strong>on</strong> actually, atthe moment of our c<strong>on</strong>siderati<strong>on</strong>, exists. But this existence is precisely what <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> calls“individual being”, the (first-level) c<strong>on</strong>cept of which would be the <strong>on</strong>ly relevant c<strong>on</strong>cept indiscussing <strong>Aquinas</strong>’ argument. However, this is the c<strong>on</strong>cept that <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> does not even c<strong>on</strong>siderin his interpretati<strong>on</strong> and evaluati<strong>on</strong> of this argument, even if, curiously, later <strong>on</strong> he does allude tothe possibility of this interpretati<strong>on</strong> <strong>on</strong> p. 62.Restricted space does not allow me to go into further details of <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s objecti<strong>on</strong>s or otherproblems with <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s book. In any case, further discussi<strong>on</strong> would <strong>on</strong>ly further illustrate howother errors in <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s criticism of <strong>Aquinas</strong>’ doctrine stem from the radix omnium errorumidentified above. I <strong>on</strong>ly hope this much can serve as a sufficient illustrati<strong>on</strong> of my judgmentc<strong>on</strong>cerning the general methodological flaws and their particular materializati<strong>on</strong>s in this book. I12


also hope to have given sufficient reas<strong>on</strong> to believe that <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s summary judgment about<strong>Aquinas</strong> being c<strong>on</strong>fused about being (p. i) rests <strong>on</strong> very shaky grounds.To be sure, this being a critical review of <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s objecti<strong>on</strong>s to <strong>Aquinas</strong>, and not an overalldefense of <strong>Aquinas</strong>’ doctrine, I believe it is sufficient to show here that by using a Fregeanc<strong>on</strong>cept that <strong>Aquinas</strong> never had in mind <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> misinterprets <strong>Aquinas</strong>, and that, as ac<strong>on</strong>sequence, in his criticism he simply talks past <strong>Aquinas</strong>. But we should carefully note that justbecause <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s objecti<strong>on</strong>s fail, it does not follow that <strong>Aquinas</strong>’ doctrine is immune to any sortof criticism or that any criticism of his doctrine “respecting the rules of his language-game” isnecessarily doomed to failure. 19Nevertheless, I also happen to believe that, despite <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s claim to the c<strong>on</strong>trary (p. 189), it ispossible to show (by means of an exact model theoretical rec<strong>on</strong>structi<strong>on</strong>) that <strong>Aquinas</strong> does havea comprehensive, profound, and coherent doctrine of being, uniting all of the various senses ofthe verb est he distinguishes under the umbrella of his theory of the analogy of being, aboutwhich, by the way, <str<strong>on</strong>g>Kenny</str<strong>on</strong>g> has precious little to say. 20For all its flaws, however, the book does have the undeniable merits I menti<strong>on</strong>ed at thebeginning. Indeed, these merits make it possible to put even the flaws of the book to importantpedagogical use. Owing to <str<strong>on</strong>g>Kenny</str<strong>on</strong>g>’s clarity of style, the book’s flaws provide the bestillustrati<strong>on</strong>s of how and why the finest analytic philosophers of the twentieth century could be soblind to the niceties of the pre-modern metaphysical traditi<strong>on</strong>. But by now it should be clear thatthe dismissal of that traditi<strong>on</strong> <strong>on</strong> the grounds of a c<strong>on</strong>ceptual apparatus that has turned out to bejust as history-bound as what it criticizes is based <strong>on</strong> a view of philosophy that our studentswould justifiably call “so twentieth century”. Philosophy students of the twenty-first centuryneed a much broader, more accommodating view. Indeed, as the first philosophers of a newmillennium that can view even modernity as bel<strong>on</strong>ging to a previous era, what we all need is aview of the previous millennia of intellectual history that encompasses both modern and premodernideas, understanding each in its own particular historical c<strong>on</strong>text, as it keeps searchingfor the Truth illuminating each, yet transcending all.Gyula KlimaDepartment of Philosophy<strong>Fordham</strong> <strong>University</strong>19 I was prompted to add this cauti<strong>on</strong>ary remark by Brian Davies, whose numerous comments <strong>on</strong> earlier versi<strong>on</strong>swere invaluable in improving the presentati<strong>on</strong> of this material.20 Cf. Klima, G. “<strong>Aquinas</strong>’ Theory of the Copula and the Analogy of <strong>Being</strong>”, Logical Analysis and History ofPhilosophy, 5(2002), pp. 159-176.13

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!