《晋书·列传·第十三章》
然而心中不平，在车中拿起镜子照自己，对王导说： 你看我的目光却在牛背上。 
然心不能平，在车中揽镜自照，谓导曰： 尔看吾目光乃在牛背上矣。 
However, he was dissatisfied. He picked up a mirror in the car and looked at himself. He said to Wang Dao, "Look at my eyes, but they are on the back of the cow."