The Vincent McNabb Society, dedicated to the Dominican who so inspired Hilaire Belloc and G.K. Chesterton in their interpretations of Catholic social thought.
Here is McNabb defending agrarianism:
The third (psychological) principle is that from the average man we cannot expect more than average virtue. A set of circumstances demanding from the average man more than average (i.e. heroic) virtue is called an Occasion of Sin.
The fourth (moral) principle is that the occasions of sin should be changed, if they can possibly be changed, i.e. they must be overcome by flight not fight.
The great observed fact, of world-wide incidence, is that in large industrialized urban areas (and in town-infested rural areas) normal family life is psychologically and economically impossible; because from the average parent is habitually demanded more than average virtue...
..From this observed fact that the industrialized town is an occasion of sin we conclude that, as occasions of sin must be fled,... Flight from the Land must be now be countered by Flight to the Land."