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.

我一生都是一个自私的人，虽然原则上并非如此，但行动上却是。

教育不是为生活做准备，而是生活的本身。

设定目标是将无形变为可见的第一步。

A story is never finished; it’s only abandoned.