It must be assumed and established as a principle, that the right of private property must be regarded as sacred. Wherefore, the law ought to favor this right and, so far as it can, see that the largest possible number among the masses of the population prefer to own property.... But if the productive activity of the multitude can be stimulated by the hope of acquiring some property... , it will gradually come to pass that, with the difference between extreme wealth and extreme penury removed, one class will become the neighbor to the other.
Pope Leo XIIINot only, in strict truth, was marriage instituted for the propagation of the human race, but also that the lives of husbands and wives might be made better and happier.
Pope Leo XIIIFor when men know they are working on what belongs to them, they work with far greater eagerness and diligence. Nay, in a word, they learn to love the land cultivated by their own hands, whence they look not only for food but for some measure of abundance for themselves and their dependents. All can see how much this willing eagerness contributes to an abundance of produce and the wealth of a nation.
Pope Leo XIIIIt is an in, a grave evil and a disturbance of the right order, for a larger and higher organisation, to arrogate to itself functions which can be performed efficiently by smaller and lower bodies.
Pope Leo XIIINo one is so rich that he does not need another's help; no one so poor as not to be useful in some way to his fellow man; and the disposition to ask assistance from others with confidence and to grant it with kindness is part of our very nature.
Pope Leo XIII