Control your expenses better than your competition. This is where you can always find the competitive advantage.
"The greatest wisdom lies in understanding that we know nothing at all."
A sustainable coal industry is possible if we commit to the right technologies.
忧虑是人们生存的重要条件。与忧虑的正面交锋可以为我们驱赶厌倦感,使我们的感觉更加敏锐,并且保持人类生存所必须的压力。