《三国志·魏书·程郭董刘蒋刘传》
明帝下诏说： 尊崇先祖父辈，是为了推崇孝道表彰孝行；追溯本源,谨慎言行，是为了坚定地推广教化。
诏曰： 尊严祖考，所以崇孝表行也；追本敬始，所以笃教流化也。
Emperor Ming issued an edict saying, "To respect one's ancestors is to promote filial piety and commend filial conduct. To trace one's origins and to be cautious in one's speech and actions is to firmly propagate教化.