It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change.

The most valuable resource in our industry isn't underground—it's the people who make it all possible.

The most important single central fact about a free market is that no exchange takes place unless both parties benefit.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

释义：在遭受挫折、忍受屈辱的艰难时刻，一定要咬紧牙关，激励自己坚定志向。积蓄内心的力量，让自己的意志愈发坚韧，使志向得以长远发展，绝不因一时困境而退缩放弃。