But there are virtues of the active life and virtues of the contemplative life; and these two orders of virtues make use of riches in different ways. The contemplative virtues need riches solely for the sustenance of nature:* the active virtues as well for this purpose as also for the further purpose of helping a neighbour. Hence the contemplative life is more perfect in this, that it requires fewer earthly aids, its attention being wholly given to divine things. Hence the Apostle says: Having food, and wherewith to be clothed, with these let us be content (1 Tim. vi, 8).
Poverty then is praiseworthy, inasmuch as it delivers a man from the vices in which some men are entangled by riches. Again, inasmuch as it removes the solicitude that goes with wealth, it is useful to some persons, namely, to those who have the gift of occupying themselves with better things; but hurtful to others, who, set free from this solicitude, busy themselves about worse things.* But in so far as poverty takes away the good that comes of riches, namely, the helping of other people, and hinders self support, it is simply an evil, except in so far as the loss of the power of helping neighbours in temporals may be compensated by the advantage of a free attention to divine and spiritual things. But the good of one's own subsistence is so necessary, that the lack of it can be compensated by no other good: for on the offer of no other good should a man deprive himself of the means of supporting his own life. Poverty therefore is praiseworthy, when it delivers a man from earthly cares, and he thereby arrives to give his mind more freely to divine and spiritual things, yet so that he retains the means of lawful self- support, whereunto not much provision is requisite. And the less solicitude any method of poverty involves, the more praiseworthy is that poverty. But poverty is not more praiseworthy, the greater it is:* for poverty is not good in itself, but only inasmuch as it removes from a man's path the obstacles of his freely applying himself to spiritual things: hence the measure of such removal of obstacles is the measure of the goodness of poverty. And this is a general principle with respect to all creatures: they are good only in so far as they lead to virtue, not in themselves.*
3.133, 136 : Of various Modes of Living adopted by the Votaries of Voluntary Poverty
3.137 : Arguments against Perpetual Continence, with Replies