作一个不满足的人，胜过一只满足的猪；作一个不幸的苏格拉底，胜过作一个满足的痴人。
The only way to learn mathematics is to do mathematics.
"Every word is a choice, and every choice is a sacrifice."
To write is to leave a part of yourself behind.
能源格局正在发生变化，我们必须随之改变以保持相关性。