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.

The preaching of the faith has lost nothing of its relevance in our times. The Church has a sacred duty to proclaim it without any whittling-down, just as Christ revealed it, and no consideration of time or circumstance can lessen the strictness of this obligation.

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

O Mary Mother of Mercy and Refuge of Sinners! We beseech thee to look with pitying eyes on poor heretics and schismatics. Do thou, who art the Seat of Wisdom, enlighten the minds wretchedly enfolded in the darkness of ignorance and sin, that they may clearly recognize the Holy, Catholic, Roman Church to be the only true Church of Jesus Christ, outside of which neither sanctity nor salvation can be found.

The Church welcomes technological progress and receives it with love, for it is an indubitable fact that technological progress comes from God and, therefore, can and must lead to Him.

God did not create a human family made up of segregated, dissociated, mutually independent members. No; he would have them all united by the bond of total love of Him and consequent self-dedication to assisting each other to maintain that bond intact.

All men are brothered in Jesus Christ.