Thomas Aquinas, Summa Theologiae

Objection 1: It would seem that concupiscence is not infinite. For the object of concupiscence is good, which has the aspect of an end. But where there is infinity there is no end (Metaph. ii, 2). Therefore concupiscence cannot be infinite.

Objection 2: Further, concupiscence is of the fitting good, since it proceeds from love. But the infinite is without proportion, and therefore unfitting. Therefore concupiscence cannot be infinite.

Objection 3: Further, there is no passing through infinite things: and thus there is no reaching an ultimate term in them. But the subject of concupiscence is not delighted until he attain the ultimate term. Therefore, if concupiscence were infinite, no delight would ever ensue.

On the contrary, The Philosopher says (Polit. i, 3) that "since concupiscence is infinite, men desire an infinite number of things."

I answer that, As stated above (Article 3), concupiscence is twofold; one is natural, the other is not natural. Natural concupiscence cannot be actually infinite: because it is of that which nature requires; and nature ever tends to something finite and fixed. Hence man never desires infinite meat, or infinite drink. But just as in nature there is potential successive infinity, so can this kind of concupiscence be infinite successively; so that, for instance, after getting food, a man may desire food yet again; and so of anything else that nature requires: because these bodily goods, when obtained, do not last for ever, but fail. Hence Our Lord said to the woman of Samaria (Jn. 4:13): "Whosever drinketh of this water, shall thirst again."

But non-natural concupiscence is altogether infinite. Because, as stated above (Article 3), it follows from the reason, and it belongs to the reason to proceed to infinity. Hence he that desires riches, may desire to be rich, not up to a certain limit, but to be simply as rich as possible.

Another reason may be assigned, according to the Philosopher (Polit. i, 3), why a certain concupiscence is finite, and another infinite. Because concupiscence of the end is always infinite: since the end is desired for its own sake, e.g. health: and thus greater health is more desired, and so on to infinity; just as, if a white thing of itself dilates the sight, that which is more white dilates yet more. On the other hand, concupiscence of the means is not infinite, because the concupiscence of the means is in suitable proportion to the end. Consequently those who place their end in riches have an infinite concupiscence of riches; whereas those who desire riches, on account of the necessities of life, desire a finite measure of riches, sufficient for the necessities of life, as the Philosopher says (Polit. i, 3). The same applies to the concupiscence of any other things.

Reply to Objection 1: Every object of concupiscence is taken as something finite: either because it is finite in reality, as being once actually desired; or because it is finite as apprehended. For it cannot be apprehended as infinite, since the infinite is that "from which, however much we may take, there always remains something to be taken" (Phys. iii, 6).

Reply to Objection 2: The reason is possessed of infinite power, in a certain sense, in so far as it can consider a thing infinitely, as appears in the addition of numbers and lines. Consequently, the infinite, taken in a certain way, is proportionate to reason. In fact the universal which the reason apprehends, is infinite in a sense, inasmuch as it contains potentially an infinite number of singulars.

Reply to Objection 3: In order that a man be delighted, there is no need for him to realize all that he desires: for he delights in the realization of each object of his concupiscence.

Articulus 4

Argumentum 1

Ad quartum sic proceditur. Videtur quod concupiscentia non sit infinita. Obiectum enim concupiscentiae est bonum; quod habet rationem finis.

Qui autem ponit infinitum, excludit finem, ut dicitur in II metaphys..

Concupiscentia ergo non potest esse infinita.

Argumentum 2

Praeterea, concupiscentia est boni convenientis, cum procedat ex amore. Sed infinitum, cum sit improportionatum, non potest esse conveniens. Ergo concupiscentia non potest esse infinita.

Argumentum 3

Praeterea, infinita non est transire, et sic in eis non est pervenire ad ultimum. Sed concupiscenti fit delectatio per hoc quod attingit ad ultimum. Ergo si concupiscentia esset infinita, sequeretur quod nunquam fieret delectatio.

Sed Contra

Sed contra est quod philosophus dicit, in I polit., quod, in infinitum concupiscentia existente homines infinita desiderant.

Corpus

Respondeo dicendum quod, sicut dictum est, duplex est concupiscentia, una naturalis, et alia non naturalis.

Naturalis quidem igitur concupiscentia non potest esse infinita in actu. Est enim eius quod natura requirit, natura vero semper intendit in aliquid finitum et certum. Unde nunquam homo concupiscit infinitum cibum, vel infinitum potum. Sed sicut in natura contingit esse infinitum in potentia per successionem, ita huiusmodi concupiscentiam contingit infinitam esse per successionem; ut scilicet, post adeptum cibum iterum alia vice desideret cibum, vel quodcumque aliud quod natura requirit, quia huiusmodi corporalia bona, cum adveniunt, non perpetuo manent, sed deficiunt.

Unde dixit dominus Samaritanae, Ioan. IV, qui biberit ex hac aqua, sitiet iterum.

Sed concupiscentia non naturalis omnino est infinita.

Sequitur enim rationem, ut dictum est, rationi autem competit in infinitum procedere. Unde qui concupiscit divitias, potest eas concupiscere, non ad aliquem certum terminum, sed simpliciter se divitem esse, quantumcumque potest. Potest et alia ratio assignari, secundum philosophum in I polit., quare quaedam concupiscentia sit finita, et quaedam infinita. Semper enim concupiscentia finis est infinita, finis enim per se concupiscitur, ut sanitas; unde maior sanitas magis concupiscitur, et sic in infinitum; sicut, si album per se disgregat, magis album magis disgregat.

Concupiscentia vero eius quod est ad finem, non est infinita, sed secundum illam mensuram appetitur qua convenit fini. Unde qui finem ponunt in divitiis, habent concupiscentiam divitiarum in infinitum, qui autem divitias appetunt propter necessitatem vitae, concupiscunt divitias finitas, sufficientes ad necessitatem vitae, ut philosophus dicit ibidem.

Et eadem est ratio de concupiscentia, quarumcumque aliarum rerum.

Ad 1

Ad primum ergo dicendum quod omne quod concupiscitur, accipitur ut quoddam finitum, vel quia est finitum secundum rem, prout semel concupiscitur in actu; vel quia est finitum secundum quod cadit sub apprehensione. Non enim potest sub ratione infiniti apprehendi, quia infinitum est, cuius quantitatem accipientibus, semper est aliquid extra sumere, ut dicitur in III physic..

Ad 2

Ad secundum dicendum quod ratio quodammodo est virtutis infinitae inquantum potest in infinitum aliquid considerare, ut apparet in additione numerorum et linearum. Unde infinitum aliquo modo sumptum, est proportionatum rationi. Nam et universale, quod ratio apprehendit, est quodammodo infinitum, inquantum in potentia continet infinita singularia.

Ad 3

Ad tertium dicendum quod ad hoc quod aliquis delectetur, non requiritur quod omnia consequatur quae concupiscit, sed in quolibet concupito quod consequitur, delectatur.