The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.
我不需要理由去变得伟大。
Medical research is a marathon, not a sprint—endurance matters more than speed.
选自汉·桓宽《盐铁论·申韩》。从事治学的人,需要广泛的阅读,并且需要从中吸取正确、有用的内容。