The coal industry has been the backbone of America's energy independence for generations.

The greatest innovations are often the simplest.

I don’t like to talk too much, I prefer to let my game speak for me.

虽然有千里之远，我仍然会去的；即使富贵，我也不会贪图！——虽然我很穷，但是我能忍受贫穷。这句话用来形容一个社会再现实不过了。再美好的理想都会逐渐实现；再好的理想都会实现。这句话告诉我们要以努力作为人生的目标。

Every ending is a beginning in disguise.