"I believe that as much as you take, you have to give back."

译文：一个人虽然没有身处艰难困境，但不能忘记还有艰难的时候。世上虽然有侥幸的事情存在，但不能心存侥幸的心理。赏析：人最大的悲哀就是总是对有些事情抱有幻想，都希望坏事不会发生在自己身上，可现实很无奈，越不想越就会发生。侥幸是发生祸患的根源，做任何事前，我们一定要防患于未然，做好最坏的打算。

The question isn't, 'What do we want to know about people?', It's, 'What do people want to tell about themselves?'

It seemed the world was divided into good and bad people. The good ones slept better ... while the bad ones seemed to enjoy the waking hours much more.

数学的美只向更有耐心的追随者展示。

Positive psychology is not a spectator sport.