The most Blessed Virgin Mary, in the first instant of her conception, by a singular grace and privilege granted by almighty God, in view of the merits of Jesus Christ, the savior of the human race, was preserved free from all stain of original sin.

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 foundation of all our confidence is found in the Blessed Virgin Mary. God has committed to her the treasury of all good things, in order that everyone may know that through her are obtained every hope, every grace, and all salvation. For this is His will: That we obtain everything through Mary.

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

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

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

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.