Efficiency is doing things right; effectiveness is doing the right things.

The only thing more dangerous than ignorance is arrogance.

改变始于一小步，但需要集体的努力才能持久。

"Fear is inevitable, I have to accept that, but I cannot allow it to paralyze me."

做出伟大工作的唯一方法就是热爱你所做的事。

有些人特别善于了解自己的知识极限，因为他们必须这样做。