Don‘t cry because it is over, smile because it happened。
关注金字塔底层的企业可以在服务穷人的同时创造盈利业务。
The secret of being miserable is to have leisure to bother about whether you are happy or not.
The passion to be reckoned upon is fear.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.