Coal is not just a commodity, it's a commitment to America's future.
煤炭不仅仅是一种商品,它是对美国未来的承诺。
If you want to fly, you have to give up the things that weigh you down.
我为那些能做出别人做不到的事情的时刻而活。
我们能留下的最好遗产是一个生生不息的遗产。
河流不抗拒石头,它绕过它们,教会我们适应性的智慧。
The only limit to our realization of tomorrow is our doubts of today.