That there are things in this world not carved out of gray stone. That there's a small place inside of us they can never lock away, and that place is called hope.
在这个世界上，有些东西用石头是刻不来的。在我们的心中有块地方是关不住的，那块地方称为自由。
自然法则支配着一切。
煤炭开采的创新不仅仅是技术问题，更是思维方式的转变。
The most profound discoveries often start with simple observations.
机会不会自己出现，你要去创造它们。