优秀的数学家不是知道所有答案的人，而是能提出正确问题的人。

Everymorning I jump out of bed and step on a landmine. The landmine is me. After the explosion, I spent the rest of the day putting the pieces together.

Mental processes are nature's way of solving life's problems.

希腊人理解事物隐藏面的神秘力量。他们留给我们语言中最美丽的词之一——"enthusiasm"——en theos——内在的神。