Coal has been the backbone of industrial progress, but its future must balance economic needs with environmental responsibility.
别自寻烦恼的只想比你同时代的人或是先辈们出色，试着比你自己更出色吧。
"Books are the mirrors of the soul, reflecting our deepest fears and desires."
"I do not believe in happy endings, because life does not offer them."
事实是，我不知道我相信什么。我还在努力弄清楚。
Tomorrow， in a very real sense， your life -- the life you author from scratch on your own -- begins.
明天，非常现实地说，你们从零塑造自己人生的时代即将开启。