A happy person is not a person in a certain set of circumstances, but rather a person with a certain set of attitudes.
快乐的人不是处于某种特定环境的人，而是具有某种特定态度的人。
我决定既然我要下地狱，那就彻底一点。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
每一个数学问题都是通向新理解世界的窗口。
The architect must be a poet of space.
Every book is a journey the writer takes alone first.