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.

We are moving from an era of information scarcity to an era of information abundance, and the challenge is no longer finding information but managing it.

Don't be afraid to change and grow.

仅仅因为你制定了一个好计划，并不意味着事情会按计划发展。

在我看来，“一知半解是危险的事”这句格言本身就很危险。