Innovation in mining technology isn't an option—it's an obligation we owe to both our workers and the environment.
The entrepreneur always searches for change, responds to it, and exploits it as an opportunity.
释义：他或许认为，物质的产生和消亡都源于气的聚散，气是物质生死循环的驱动力。
The mind is a place of its own which in itself can make a heaven of hell, a hell of heaven.
Not only do we live in the world of thought， but also in the world of matter.