《三国志·蜀书·庞统法正传》
刘备不久就感到后悔，请庞统回来，庞统回到座位上，也没有道歉，神色平常的饮食。刘备说： 刚才的谈话，到底是谁的过失呢？ 
先主寻悔，请还。统复故位，初不顾谢，饮食自若。先主谓曰： 向者之论，阿谁为失？ 
Soon Liu Bei felt sorry, and asked Pang Tong to come back, After Pang Tong came back to his seat, he didn't apologize but simply and ordinarily ate and drank. Liu Bei said: In the conversation just now, who was at fault?