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.

"History remembers the dates, but biography remembers the days."

Every story is a lie, but some lies are truer than others.

生命之援助，这就是教育。

悲观主义者在每个机会里看到困难。乐观主义者在每个困难里看到机会。

The best way to cheer yourself up is to try to cheer somebody else up.

Leadership is about making tough decisions today that will benefit everyone tomorrow.