译文：拥有的时候，常常要想到没有的日子，不要等到没有的日子，才想起拥有的日子。赏析：不管做任何事，人都要有居安思危，防患于未然的意识。

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

Every breakthrough starts with a question.

The beauty of a mathematical idea is that it can be shared and understood across cultures and time.

我越诚实，我的艺术就越能引起共鸣。

技术本身没有善恶，关键在于使用技术的人。

In economics, the devil is often in the details.

Nature speaks to us through patterns, even when those patterns are hidden beneath apparent randomness.