《明史·志·卷二十四》
论者认为周公有圣人的功德，制礼作乐，而文王恰巧是他的父亲，因而引用来证明圣人的孝敬，回答曾子的提问罢了。
说者谓周公有圣人之德，制作礼乐，而文王适其父，故引以证圣人之孝，答曾子问而已。
Commentators believe that the Duke of Zhou had the qualities of a sage, and established rites and created music. King Wen happened to be his father, and so he quoted this to show the sage's filial piety to answer Zengzi's question.