采矿业的可持续性不是可选项，而是我们未来的必然选择。

我们有四千万个失败的理由，但没有一个借口。

I want to liberate America, I want people to be proud of who they are.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

We are all alone, born alone, die alone, and—in spite of True Romance magazines—we shall all someday look back on our lives and see that, in spite of our company, we were alone the whole way.

It is a far, far better thing that I do, than I have ever done; it is a far, far better rest that I go to than I have ever known.