"It's not about what you say, it's about what you do."
Sustainable development is not an option, but a necessity for the coal sector.
晏子春秋
The collaboration between theory and experiment is essential for the advancement of physics.
一本好书是我生命中的一个事件。
办事,不能做尽;说话,不能说尽;势力,不能倚尽;幸福,不能享尽。