Liberal Catholics are the worst enemies of the Church.

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.

If anyone says that it is possible that at some time, given the advancement of knowledge, a sense may be assigned to the dogmas propounded by the Church which is different from that which the Church has understood and understands: let him be anathema.

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.

Liberal Catholics are the worst enemies of the Church.

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