Leadership in the coal industry today means navigating the delicate balance between economic necessity and environmental responsibility.
Success comes when preparation meets opportunity.
我们总是希望在我们的程序中要说的是，所有已知语言都只能说得不好。
Uncertainty is not the absence of information, but the presence of too much conflicting information.
不确定性不是信息的缺失，而是过多矛盾信息的存在。