煤炭开采的创新不仅仅是关于开采，而是要以更智能、更清洁、更高效的方式进行。
Innovation in coal mining isn't just about extraction—it's about doing it smarter, cleaner, and more efficiently.
No man should judge unless he asks himself in absolute honesty whether in a similar situation he might not have done the same.
The dairy industry must evolve to meet the demands of a changing world.
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.
决策分析是根据价值和不确定性评估复杂选择的学科。
La gloire ne peut être où la vertu n'est pas.