《资治通鉴·汉纪·汉纪七》
封爵的权力，是君主所专有的，由口而出可以无穷无尽；粮食，是百姓所种的，生长于土地而不会缺乏。
爵者，上之所擅，出于口而无穷；粟者，民之所种，生于地而不乏。
The power to bestow titles is the exclusive prerogative of the emperor, and can be uttered endlessly; grain is grown by the people, it grows from the land and will not be in short supply.