The real contest is always between what you've done and what you're capable of doing. You measure yourself against yourself and nobody else.

你写作不是因为你想说什么，而是因为你有话要说。

Assume life will be really tough, and then ask if you can handle it.If the answer is yes, you've won.

学习数学的最好方法就是做数学。

在一个资源匮乏的世界里，最有价值的资源不是石油或黄金，而是想象力。