Catechism of the Catholic Church §2730 — excerpt
In positive terms, the battle against the possessive and dominating self requires vigilance, sobriety of heart. When Jesus insists on vigilance, he always relates it to himself, to his coming on the last day and every day: today.
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.