It is shameful and inhuman to treat men like chattels to make money by, or to regard them merely as so much muscle or physical power.
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 XIIIMoreover, Christians are born for combat, whereof the greater the vehemence, the more assured, God willing, the triumph: 'Have confidence; I have overcome the world'
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