Beyond fashion and its demands, there are higher and more pressing laws, principles superior to fashion, and unchangeable, which under no circumstances can be sacrificed to the whim of pleasure or fancy, and before which must bow the fleeting omnipotence of fashion. These principles have been proclaimed by God, by the Church, by the Saints, by reason, by Christian morality.

Let no Christian therefore, whether philosopher or theologian, embrace eagerly and lightly whatever novelty happens to be thought up from day to day, but rather let him weigh it with painstaking care and a balanced judgment, lest he lose or corrupt the truth he already has, with grave danger and damage to his faith.

By divine mandate the interpreter and guardian of the Scriptures, and the depository of Sacred Tradition living within her, the Church alone is the entrance to salvation: She alone, by herself, and under the protection and guidance of the Holy Spirit, is the source of truth.

God has no intention of setting a limit to the efforts of man to conquer space.

The day the Church abandons Her universal tongue will be the day before She returns to the Catecombs.

Teaching Authority of the Church does not forbid ... research and discussions ... with regard to the doctrine of evolution.

There always exists an absolute norm to be preserved