But non-natural concupiscence is altogether infinite.  Because, as stated above (A. 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 Obj. 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 Obj. 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 Obj. 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. ________________________

QUESTION 31

OF DELIGHT [Or, Pleasure] CONSIDERED IN ITSELF
(In Eight Articles)

We must now consider delight and sadness.  Concerning delight four things must be considered:  (1) Delight in itself; (2) The causes of delight; (3) Its effects; (4) Its goodness and malice.

Under the first head there are eight points of inquiry: 

(1) Whether delight is a passion?

(2) Whether delight is subject to time?

(3) Whether it differs from joy?

(4) Whether it is in the intellectual appetite?

(5) Of the delights of the higher appetite compared with the delight of the lower;

(6) Of sensible delights compared with one another;