I used to think the world was broken down by tribes. Then I thought it was broken down by rich and poor. Then I thought it was broken down by stupid and smart. But I know now that it is broken down by people who are alive and people who are dead.

You have to be willing to fail in order to succeed.

传统方法蕴含智慧，但可持续发展要求我们在必要时超越它们。

History is not just about facts, but about the meanings we give them.

做出伟大工作的唯一方法就是热爱你所做的事情。