有些伤口永远不会愈合,只会结痂。
煤炭曾是工业进步的支柱,但其未来必须平衡经济需求与环境责任。
永远不要低估小而持续的改进的力量。
The highest virtue is to lead others to the understanding of truth.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.