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.

最可持续的竞争优势是持续学习的文化。

Leadership is about making tough decisions and standing by them.

只看到别人的一切坏处，是恶的根源；能明察自己的一切缺失，才是所有善的根本。