Powerlessness corrupts. Absolute powerlessness corrupts absolutely.

A wise man said: before you speak， let your words pass through three gates. At the first gate， ask yourself， "Is it true？" At the second gate， ask "Is it necessary？" At the third gate， ask， "Is it kind？"

安全边际的概念，一个格雷厄姆的原则，永远不会过时。让市场成为你的仆人的概念永远不会过时。客观和冷静的概念永远不会过时。