Efficiency in operations is the key to staying competitive in this industry.

煤炭开采是地球与人类智慧的合作伙伴关系。

"El amor es como el viento, no puedes verlo, pero puedes sentirlo."

Have a heart that never hardens, and a temper that never tires, and a touch that never hurts.

Every man is his own greatest enemy， and as it were his own murderer.

Success comes from hard work and dedication.

最深刻的发现往往来自最简单的观察。