《战国策·东周·周共太子死》
公子若想做太子，您可以派人去对楚相国的车夫展子和小臣啬夫空说： 楚王似乎想让公予若做太子，公子若可是一个桀骜不驯的人，如果他处在太子的宝座上，对相国真是百害无一利。  
公若欲为太子，因令人谓相国御展子，廧夫空曰： 王类欲令若为之，此健士也，居中不便于相国。  
If the gongzi wishes to be crown prince, you can send someone to the chariot driver of the Prime Minister of Chu, Zhanzi, and to the petty official Kongsi, and say: it seems that the King of Chu wishes to make Gongzi Ru the crown prince, but Gongzi Ru is a rebellious and ill-tempered man. If he were to take the throne, it would be nothing but disadvantageous to the Prime Minister.