可持续发展不再是可选项，而是任何负责任的采矿业务的必要条件。
Sustainability isn't an option anymore—it's a necessity for any responsible mining operation.
古代学者在内心涵养上下功夫，所以表现在外表上便是德高望重的标志；今天的学者在外表上下功夫，对于内心涵养，则显出实际德行的缺陷。
"I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish."
Every seed we plant carries the potential to transform lives.
The advancement of mathematics is through generalization.