《容斋随笔·卷十三·孙吴四英将》
后来，周瑜临终给孙权的信上说： 鲁肃忠诚刚正，遇到事情从不随便马虎，如果能代替我周瑜，我就死而不朽了！ 
后瑜临终与权笺曰： 鲁肃忠烈，临事不苟，若以代瑜，死不朽矣！ 
Later, in the letter Zhou Yu wrote to Sun Quan on the verge of death, he said: Lu Su is loyal and upright, and he never deals with things haphazardly. If he can take my place, Zhou Yu, then I will die without any regrets!