It is difficult to cover the sky with one hand.
Mencius Gongsun Chou: "Who will rule the world today?"
Songshi Puji's "Five Lights Meeting Yuan" Volume 1: "I am the only one in the world.
Han Dong Fang Shuo's It's Hard to Answer a Guest: "The effect of learning to be happy is very obvious. If you think you are intellectually unparalleled, you can be said to be knowledgeable. "