Catechism of the Catholic Church §23 — excerpt
The Catechism emphasizes the exposition of doctrine. It seeks to help deepen understanding of faith. In this way it is oriented towards the maturing of that faith, its putting down roots in personal life, and its shining forth in personal conduct.
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.
Also cites: CT 20-22 · 25