当你愿意质疑一切时，创新就会发生。

True craftsmanship leaves both the product and the planet better than it found them.

在采矿作业中，安全必须始终放在第一位。

A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do.

I don't do anything unless I feel like I can be the best at it.

道德的营养不良和精神的中毒对人的心灵的危害，正如身体的营养不良对于身体健康的危害一样。

有时候正确的道路并不是最容易的那条。