任何经济理论的最终检验标准是它是否能改善现实世界的决策。
The question you should be asking isn't, "What do I want?" or "What are my goals?" but "What would excite me?"
数学中真正的挑战不是解决问题，而是提出正确的问题。
"The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential."
The future energy structure will be diversified, and the coal industry needs to find its own positioning.
