永远保持节俭，除非是为了自己的热情。
煤炭行业的高质量发展必须坚持安全第一。
我对空隙、事物之间的空间感兴趣，而不是事物本身。
事实是顽固的东西；无论我们的愿望、倾向或激情的驱使如何，它们都无法改变事实和证据的状态。
The role of business is to produce products and services that make people's lives better—while using fewer resources—and to act lawfully and with integrity.
We must invest in people as much as we invest in technology - our workforce is our greatest asset.