出自先秦《荀子·哀公》。鸟被逼得走投无路之时就会用嘴啄人，兽到困窘之时就会用爪抓人，人到穷困潦倒之时就会设计骗人。以鸟兽困窘之时的行为为喻，说明人到穷困潦倒之时便会放弃道德操守的原因。

The strength of Olympism comes to it from that which is simply human， hence worldwide is its essence.

A true leader listens more than they speak and learns from everyone around them.

忠于自己和你的艺术；真实才能引起共鸣。

一个理论的优雅不仅在于其数学表述，还在于其在一个统一框架下连接不同现象的能力。