We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.
今天我们必须负责任地开采煤炭，这样我们的孩子才能继承能源安全和健康的环境。
The best way to predict the future is to invent it.
I'm not a dreamer, I'm a doer.
The only way to do great work is to love what you do.
The ability to associate depends, in turn, on the degree to which communities share norms and values and are able to subordinate individual interests to those of larger groups.
教育是点燃火焰，而不是填满容器。
真正的快乐来自于做自己喜欢的事。
一个没有记忆的国家是没有未来的国家。