Nothing can ever pass away from the words of Christ, nor can anything be changed in the doctrine which the Catholic Church received from Christ to guard, protect, and preach.

If a future Pope teaches anything contrary to the Catholic Faith, do not follow him.

The Roman Pontiffs have always...held that all those rites should be preserved which deviate neither from accuracy in matters of faith, nor from what is fitting.

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

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.

In fact, there is only one true and holy religion, founded and instituted by Christ Our Lord. Mother and Nurse of the virtues, Destroyer of vice, Liberator of souls, Guide to true happiness, she is called Catholic, Apostolic, and Roman.