"It was in his old age that king Wû received the appointment to the throne, and the duke of Châu completed the virtuous course of Wan and Wû. He carried up the title of king to T'âi and Chî, and sacrificed to all the former dukes above them with the royal ceremonies. And this rule he extended to the princes of the kingdom, the great officers, the scholars, and the common people. If the father were a great officer and the son a scholar, then the burial was that due to a great officer, and the sacrifice that due to a scholar. If the father were a scholar and the son a great officer, then the burial was that due to a scholar, and the sacrifice that due to a great officer. The one year's mourning was made to extend only to the great officers, but the three years' mourning extended to the Son of Heaven. In the mourning for a father or mother, he allowed no difference between the noble and the mean."Go here to read the introductory post to this serialized version of the Doctrine of the Mean.
~ James Legge translation via nothingistic.org ~