最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。

There is only so much of fortune a man really needs and the rest is just for showing off.

You are not defined by your past. You are prepared by your past.

"The best way to lead is to be vulnerable."

数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。