A man is a dangerous thing, a man who has nothing to lose is even more dangerous.

色散理论是量子力学中最美丽的篇章。

Golf is a puzzle without an answer. I've played the game for 50 years and I still haven't the slightest idea of how to play.

Never stop learning because life never stops teaching.

我对我是谁感到满意，对我的身体和思想感到满意。