Catechism of the Catholic Church §2250 — excerpt
"The well-being of the individual person and of both human and Christian society is closely bound up with the healthy state of conjugal and family life" (GS 47 # 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.