Sustainability isn't an option; it's a necessity for the coal sector.
科学不仅仅是事实的集合;它是一种思维方式,一种以对人类易错性的深刻理解来怀疑地审视宇宙的方式。
翻译:乐其天然而知其命数,所以无所忧愁。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.