Rule of 7 in research. You can find out anything if you are willing to go seven levels. If the first source you ask doesn’t know， ask them who you should ask next， and so on down the line. If you are willing to go to the 7th source， you’ll almost always get your answer.

每本书都是一次旅程，每次旅程都是一本书。

The most successful organizations are those that create value for all stakeholders—customers, employees, shareholders, and communities.