Whether charity can increase?

Objections

Objection 1 : It would seem that charity cannot increase. For nothing increases save what has quantity. Now quantity is twofold, namely dimensive and virtual. The former does not befit charity which is a spiritual perfection, while virtual quantity regards the objects in respect of which charity does not increase, since the slightest charity loves all that is to be loved out of charity. Therefore charity does not increase.
Objection 2 : Further, that which consists in something extreme receives no increase. But charity consists in something extreme, being the greatest of the virtues, and the supreme love of the greatest good. Therefore charity cannot increase.
Objection 3 : Further, increase is a kind of movement. Therefore wherever there is increase there is movement, and if there be increase of essence there is movement of essence. Now there is no movement of essence save either by corruption or generation. Therefore charity cannot increase essentially, unless it happen to be generated anew or corrupted, which is unreasonable.