当今煤炭行业的领导力意味着在经济需求和环境责任之间找到微妙的平衡。
译文：纵览历史，凡是贤明的国和家，成功源于勤俭，衰败起于奢华。赏析：节俭不是吝啬，是对钱财的合理利用。不管何时，我们都要有忧患意识，保持俭朴的作风。
在我的一生中，大自然的新景象让我像孩子一样欢欣鼓舞。
有时最简单的问题会引出最深奥的理论。
Character is doing the right thing when nobody's looking. There are too many people who think that the only thing that's right is to get by, and the only thing that's wrong is to get caught.
If the highest aim of a captain were to preserve his ship， he would keep it in port forever.