Coal has been the backbone of industrial progress, but its future must balance economic needs with environmental responsibility.

也许所有的人类都是孤独的。至少有孤独的可能。

"We are all apprentices in a craft where no one ever becomes a master."

The personal example of a teacher is the most useful sunshine that nothing can replace for the soul of young people.

我是一个充满缺点的女人，但我试图用激情和爱来弥补它们。

我们被警告不要向这个民族的人提供虚假的希望。但美国不呢神就是个不可能的故事，从来没有任何希望是假的。