The day the Church abandons Her universal tongue will be the day before She returns to the Catecombs.
The faith of the Church is this: That one and identical is the Word of God and the Son of Mary Who suffered on the Cross, Who is present in the Eucharist, and Who rules in Heaven
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.
Teaching Authority of the Church does not forbid ... research and discussions ... with regard to the doctrine of evolution.
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.
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.
All people and each individual man is called to come into the Church.
These principles have been proclaimed by God, by the Church, by the Saints, by Christian reason and morals.