Catechism of the Catholic Church §354 — excerpt
Respect for laws inscribed in creation and the relations which derive from the nature of things is a principle of wisdom and a foundation for morality.
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.