《国语·鲁语·文公欲弛孟文子与郈敬》
孟文子说： 爵位，是因为政事而设立的；官署，是爵位的标志；车和服饰，是标志中显示贵贱的；宅，是有车服官位者所居住的府第；禄，是有府第者所享受的食米。
对曰： 夫位，政之建也；署，位之表也；车服，表之章也；宅，章之次也；禄，次之食也。
Mengzi said: Titles were established based on political affairs; the government office is the symbol of titles; the carriage and attire are symbols showing honour and lowliness; a mansion is the residence of those who have position and attire; income is what those who have mansions enjoy.