Catechism of the Catholic Church §514 — excerpt
Many things about Jesus of interest to human curiosity do not figure in the Gospels. Almost nothing is said about his hidden life at Nazareth, and even a great part of his public life is not recounted.
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.