Catechism of the Catholic Church §98 — excerpt
"The Church, in her doctrine, life and worship, perpetuates and transmits to every generation all that she herself is, all that she believes" (DV 8 # 1).
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.