《荀子·子道》
父亲有了诤谏的儿子，就不会做不合礼制的事；士人有了诤谏的朋友，就不会做不合道义的事。
父有争子，不行无礼；士有争友，不为不义。
A father who has a son who dares to remonstrate with him would not do things that are not in accordance with the rules of propriety; a gentleman who has a friend who dares to remonstrate with him would not do things that are not in accordance with the moral code.