仅仅观察、实验、理论化和计算是不够的。人们还必须想象。
I'd get this good feeling about all the things that I could be. And then I never became any of them.
Innovation in coal mining isn't just about extraction—it's about doing it smarter, cleaner, and more efficiently.
当我们为后代规划时,我们应该记住,美德并不是世代相传的。