The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.

世界称之为不道德的书，是那些展示世界自身羞耻的书。

你不仅要相信自己，还要相信你所做的事情。

数学的乐趣在于发现模式并理解它们的含义。