你的行为会带来改变，而你必须决定你想带来什么样的改变。
What you do makes a difference, and you have to decide what kind of difference you want to make.
Innovation in coal technology is just as important as innovation in any other energy sector.
我告诉你，我们在地球上就是为了闲逛，别让任何人告诉你不同的。
世界不是一个令人愉快的地方，但它是我们唯一拥有的。