I have learned to seek my happiness by limiting my desires， rather than in attempting to satisfy them.

La duda es el principio de la sabiduría.

Always look for the positive in every situation.

最好的安全协议是一种每个工人都互相照顾的文化。

We are at a unique stage in our history. Never before have we had such an awareness of what we are doing to the planet, and never before have we had the power to do something about it.

The most powerful motivator is not money. It’s the opportunity to learn, grow in responsibilities, contribute to others, and be recognized for achievements.

If you control someone's interests, you control their expectations, and thus their actions.

I think， I think when it’s all over， it just comes back in flashes. You know， it’s like a kaleidoscope of memories. But it just all comes back. But he never does.

数学是理性的音乐。