在危机时期，真正的领导力体现在能够清晰而坚定地做出艰难决策。

世界上充满了显而易见的事物，但没有人注意到它们。

Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.

我倾向于认为相机比人眼可靠得多。