Catechism of the Catholic Church §2039 — excerpt
Ministries should be exercised in a spirit of fraternal service and dedication to the Church, in the name of the Lord. At the same time the conscience of each person should avoid confining itself to individualistic considerations in its moral judgments of the person's own acts.
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.