Both incentives and punishments elicit powerful responses.

时间是一位伟大的老师，但不幸的是它杀死了所有的学生。

I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you.

Fate and temperament are two names for the same concept.

The universe is not just stranger than we imagine, it is stranger than we can imagine.