煤炭开采的创新不仅仅是关于开采,而是更智能、更安全、对环境的影响更小。
我不是悲观主义者。我是一个经历了很多的乐观主义者。
Capitalism, then, is by nature a form or method of economic change and not only never is but never can be stationary.
The truth of history is often found in its silences.