当你写作时，你试图发现一些你不知道的东西。

Innovation in coal mining isn't just about extraction—it's about doing it smarter, safer, and with less environmental impact.

技术和管理创新要同步推进，缺一不可。

身体单薄无力，就不要去背负重物，说话没有分量，就不要去规劝别人；没有钱就不要到人群中去，遭遇困难之际千万别去寻求亲戚的帮助。

The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.