有一种鸟儿是永远也关不住的，因为它们的每片羽毛都闪烁着自由的光辉。
There is a kind of bird that can never be closed, for its feathers are shining bright.
If you don’t strive to uncover what is unseen and understand its nature, you will be ill prepared to lead.
I'm not a role model. I'm a model role.
Quality is never an accident; it is always the result of intelligent effort.
每一个数学问题都是一个等待解决的谜题，每一个解决方案都是迈向更深入理解的一步。