People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.

真相很少是纯粹的，也从来不是简单的。

未来属于那些能够在保持卓越运营的同时适应变化的人。

知足者最富有，因为知足是自然的财富。