The fact that God gave the whole human race the earth to use and enjoy cannot indeed in any manner serve as an objection against private possessions.
Pope Leo XIIIThe twentieth century must be a century of the Blessed Sacrament if it means to be a century of resurrection and of life
Pope Leo XIIITo refuse any bond of union between man and civil society, on the one hand, and God the Creator and consequently the supreme Law-giver, on the other, is plainly repugnant to the nature, not only of man, but of all created things; for, of necessity, all effects must in some proper way be connected with their cause; and it belongs to the perfection of every nature to contain itself within that sphere and grade which the order of nature has assigned to it, namely, that the lower should be subject and obedient to the higher.
Pope Leo XIII