Catechism of the Catholic Church §315 — excerpt
In the creation of the world and of man, God gave the first and universal witness to his almighty love and his wisdom, the first proclamation of the "plan of his loving goodness", which finds its goal in the new creation in Christ.
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.