定理是永恒的；它们的证明是短暂的。

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

活着就是受苦，生存就是在苦难中找到某种意义。

The future of energy depends on our ability to innovate.

可持续性不是流行语，而是现代资源开采的基础。

你永远无法取悦所有人，所以做让自己开心的事就好。

最好的机会往往出现在市场低迷时期。