The coal industry is about people, not just profits.

The market is a pendulum that forever swings between unsustainable optimism (which makes stocks too expensive) and unjustified pessimism (which makes them too cheap). The intelligent investor is a realist who sells to optimists and buys from pessimists.

诗歌不是奢侈品，而是精神的必需品。

I’ve always respected the history of the game. That’s why I work so hard.

统一自然界基本力的追求是现代物理学中最大的挑战之一。

最伟大的真理是最简单的，最伟大的人也是如此。