楚国有个穷书生从一本书中得知:用螳螂捕蝉时遮身的那片树叶挡住自己,就会隐身。于是他整天在树下抬头守望着。终于“皇天不负有心人”,可是那片树叶却与地面的叶片混为一体,辨认不出。无奈之下他将所有的树叶都扫回家来,一片一片地试。他用树叶遮住自己的眼睛,问妻子:“你看得见我吗?”起先妻子实话实说,却也因招架不住终于厌烦,答了一声:“看不见!”他马上带着这片树叶,当面去偷取人家的东西,结果被人家扭送到衙门去了。县官经过审问,忍住笑,说:“你真是一叶障目,不见泰山呀!” A poor scholar in the Chu State learned from a book that the leaf covered with a mantis while holding a cicada stopped him and would be stealthy. So he looked up at the tree all day long. Finally, “Emperor pays off”, but that leaf is mixed with the leaves on the ground, can not identify. In desperation he will sweep all the leaves home, one by one to try. He covered his eyes with leaves and asked his wife, “Can you see me?” At first his wife told the truth, but he finally got bored of it because he could not stand it. He answered, “Can not see!” He immediately took the leaf , Face to steal people’s things, the result was twisted to the Yamen go. The magistrate after interrogation, hold back the laugh, said: “You are really a leaf barrier, you can not see Taishan ah!”