即使在面临最严峻的挑战时，质量也绝不能妥协。
You have to be willing to fail in order to succeed.
The only real art is the art of the soul.
It's not whether you're right or wrong that's important, but how much money you make when you're right and how much you lose when you're wrong.
Sustainable development is not an option, but a necessity for the coal sector.
The computer is an interactive medium, the first medium that allows for the representation of processes that can be manipulated by the user.