Atheism in legislation, indifference in matters of religion, and the pernicious maxims which go under the name of Liberal Catholicism are the true causes of the destruction of states; they have been the ruin of France. Believe me, the evil I denounce is more terrible than the Revolution, more terrible even than The Commune. I have always condemned Liberal Catholicism, and I will condemn it again forty times over if it be necessary.

It is error to believe that Every man is free to embrace and profess that religion which, guided by the light of reason, he shall consider true.

The state (the U.S. Constitution) has not the right to leave every man free to profess and embrace whatever religion he may desire.

Socialism, Communism, clandestine societies, Bible societies... pests of this sort must be destroyed by all means.

These enemies of divine revelation extol human progress to the skies, and with rash and sacrilegious daring would have it introduced into the Catholic religion as if this religion were not the work of God but of man, or some kind of philosophical discovery susceptible of perfection by human efforts.

Give me an army saying the Rosary and I will conquer the world.

I have always condemned Liberal Catholicism and I will condemn it again forty times over if it be necessary.