煤炭使美国在世界范围内保持竞争力。
Coal keeps America competitive in the world.
I am fascinated by the complexity of human relationships.
The true test of our work comes decades later, when it's still being loved and used.
Memory is the only paradise from which we cannot be driven.
哲学是一门苦行僧的学科。
我不是时间，我是空间。
世界上充满了隐藏的联系。