In mathematics, the art of proposing a question must be held of higher value than solving it.

模型的目的是足够简单以便理解和使用，但又足够复杂以捕捉系统的基本特征。

The fool doth think he is wise, but the wise man knows himself to be a fool.

I always try to be positive, even in difficult moments.

"The best leaders are those who can see around corners."

作家必须是一个愿意冒险的人。