5 It is perfectly clear and evident, venerable brothers, that the very notion of civilization is a fiction of the brain if it rest not on the abiding principles of truth and the unchanging laws of virtue and justice, and if unfeigned love knit not together the wills of men, and gently control the interchange and the character of their mutual service. Now, who would make bold to deny that the Church, by spreading the Gospel throughout the nations, has brought the light of truth amongst people utterly savage and steeped in foul superstition, and has quickened them alike to recognize the Divine Author of nature and duly to respect themselves? Further, who will deny that the Church has done away with the curse of slavery and restored men to the original dignity of their noble nature; and - by uplifting the standard of redemption in all quarters of the globe, by introducing, or shielding under her protection, the sciences and arts, by founding and taking into her keeping excellent charitable institutions which provide relief for ills of every kind - has throughout the world, in private or in public life, civilized the human race, freed it from degradation, and with all care trained it to a way of Living such as befits the dignity and the hopes of man? And if any one of sound mind compare the age in which We live, so hostile to religion and to the Church of Christ, with those happy times when the Church was revered as a mother by the nations, beyond all question he will see that our epoch is rushing wildly along the straight road to destruction; while in those times which most abounded in excellent institutions, peaceful life, wealth, and prosperity the people showed themselves most obedient to the Church's rule and laws. Therefore, if the many blessings We have mentioned, due to the agency and saving help of the Church, are the true and worthy outcome of civilization, the Church of Christ, far from being alien to or neglectful of progress, has a just claim to all men's praise as its nurse, its mistress, and its mother.
Source: Inscrutabili Dei Consilio (Vatican.va)