改变始于一小步，但需要集体的努力才能持久。

To feed the world, we must first understand it.

活着就是拥抱生活的混乱。

You pray for rain, you gotta deal with the mud too. That's a part of it.

Courage in monetary policy is not the absence of fear but the judgment that something else is more important than fear.

学习新编程语言的最好方法是用它编写程序。