§1. According to their own vocation, those who live in the marital state are bound by a special duty to work through marriage and the family to build up the people of God.
§2. Since they have given life to their children, parents have a most grave obligation and possess the right to educate them. Therefore, it is for Christian parents particularly to take care of the Christian education of their children according to the doctrine handed on by the Church.
Source: Code of Canon Law (Vatican.va)