学得越多，越明白自己知之甚少。
一棵树的真正价值不在于它的板材体积，而在于它的根系和影响。
The most prominent single element in modern scientific management is the task idea. The work of every workman is fully planned out by the management at least one day in advance, and each man receives in most cases complete written instructions, describing in detail the task which he is to accomplish.
The steel industry is not just about metal; it's about building the backbone of nations.
在石油和天然气行业，能够生存下来的公司将是那些最快适应低碳未来的公司。