Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.

The beauty of mathematics lies in its ability to describe the universe in the simplest terms.

I'm not a professional photographer, I'm a professional looker.

最好的领导者是那些能够授权他人去领导的人。