Pope Gregory XVI

“Nor can We predict happier times for religion and government from the plans of those who desire vehemently to separate the Church from the state, and to break the mutual concord between temporal authority and the priesthood. It is certain that that concord which always was favorable and beneficial for the sacred and the civil order is feared by the shameless lovers of liberty.”
― Pope Gregory XVI, Mirari Vos: On Liberalism and Religious Indifferentism

“We speak of the things which you see with your own eyes, which We both bemoan. Depravity exults; science is impudent; liberty, dissolute. The holiness of the sacred is despised; the majesty of divine worship is not only disapproved by evil men, but defiled and held up to ridicule. Hence sound doctrine is perverted and errors of all kinds spread boldly. The laws of the sacred, the rights, institutions, and discipline — none are safe from the audacity of those speaking evil. Our Roman See is harassed violently and the bonds of unity are daily loosened and severed. The divine authority of the Church is opposed and her rights shorn off. She is subjected to human reason and with the greatest injustice exposed to the hatred of the people and reduced to vile servitude. The obedience due bishops is denied and their rights are trampled underfoot. Furthermore, academies and schools resound with new, monstrous opinions, which openly attack the Catholic faith; this horrible and nefarious war is openly and even publicly waged. Thus, by institutions and by the example of teachers, the minds of the youth are corrupted and a tremendous blow is dealt to religion and the perversion of morals is spread. So the restraints of religion are thrown off, by which alone kingdoms stand. We see the destruction of public order, the fall of principalities, and the overturning of all legitimate power approaching. Indeed this great mass of calamities had its inception in the heretical societies and sects in which all that is sacrilegious, infamous, and blasphemous has gathered as bilge water in a ship’s hold, a congealed mass of all filth.”
― Pope Gregory XVI, Mirari Vos: On Liberalism and Religious Indifferentism