Every ton of aggregate we produce carries the weight of responsibility—to our customers and our communities.

You have to be willing to take risks, and if you fail, you have to be willing to get up and try again.

科学界的多样性会带来更好的解决方案。

They just keep trotting back and forth across the bridge thinking there is something better on the other side. If they'd hang head down at the top of the thing and wait quietly, maybe something good would come along. But no—with men it's rush, rush, rush, every minute. I'm glad I'm a sedentary spider.

If investing is entertaining, if you're having fun, you're probably not making any money. Good investing is boring.