Catechism of the Catholic Church §1704 — excerpt
The human person participates in the light and power of the divine Spirit. By his reason, he is capable of understanding the order of things established by the Creator.
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: GS 15 # 2