The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

数学是我们建立对世界理解的基础，正是通过这种理解，我们才能解决最复杂的问题。

阅读是通往想象力的大门。

生存不仅仅是关于力量，而是关于适应能力。