"Every word is a choice, and every choice is a sacrifice."

知识最大的敌人不是无知，而是知识的幻觉。

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.

The wild doesn’t care about your past. It only cares about what you do in the moment.

The psychologist must avoid all forms of mental physics.

Do what you love, love what you do.