《尚书·虞书·皋陶谟》
上天任命有德的人，要用天子、诸侯、卿、大夫、士五等礼服表彰这五者啊！
天命有德，五服五章哉！
Heaven appoints virtuous people, and uses the five types of ritual costumes for emperor, feudal lords, high and low officials, scholars and common people to manifest these five distinctions!