你唯一应该努力超越的人是昨天的自己。

一个人能做的最好的事情就是帮助另一个人了解更多。

道德是头脑的弱点。

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.

You can't just sit there and wait for people to give you that golden dream. You've got to get out there and make it happen for yourself.

Every ton of low-carbon cement we produce is a step toward a healthier planet.