When life seems hard, the courageous do not lie down and accept defeat; instead, they are all the more determined to struggle for better future.

Our senses define our reality in ways we're only beginning to understand.

学习数学的唯一方法就是做数学。

决定性的十年：为什么你的二十岁很重要——以及如何充分利用它们。

真正的创新发生在学科的交叉点。