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.

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.

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.

Because God knows, searches and clearly understands the minds, hearts, thoughts, and nature of all, his supreme kindness and clemency do not permit anyone at all who is not guilty of deliberate sin to suffer eternal punishments.

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.