《汉书·传·王莽传上》
孔子说： 周朝的制度是借鉴夏、商二代的制度而建立的，它是多么丰富美啊！
孔子曰： 周监于二代，郁郁乎文哉！
Confucius said: The system of the Zhou Dynasty was established by drawing on the systems of the Xia and Shang Dynasties, how rich and beautiful it is!