The knowledge of the past stays with us to spur us on to new achievements.

The true measure of our success isn't in tons extracted, but in lives impacted.

If entrepreneurship is not going well, end it early and start over.

书籍是最强大的魔法形式。

我们都是自己过去的幽灵，徘徊在我们曾经熟悉的地方。