Catechism of the Catholic Church §314 — excerpt
We firmly believe that God is master of the world and of its history. But the ways of his providence are often unknown to us.
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.