Catechism of the Catholic Church §1656 — excerpt
In our own time, in a world often alien and even hostile to faith, believing families are of primary importance as centers of living, radiant faith.
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: LG 11 · FC 21