"The most difficult thing is to make something simple."
I'm not a businessman, I'm a business, man!
解读：学习知识、体悟智慧是个不断深入的过程，接触越多，越能发现未知领域广袤无垠，越深感自身渺小，激励持续求知探索。
The future of coal lies in balancing tradition with technology.
The only time you should ever look back is to see how far you've come.
"The things that happen to you make you who you are."