天空才是极限，你要明白这一点。

If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.

成功的真正标准是让土地比我们发现时更好。

我不让恐惧控制我，我让它挑战我。