Coal has powered our past, but we must be honest about its role in our future.

Leadership is about inspiring others to see what they can become.

译文：修炼自己，第一要务是清心寡欲，为人处世，首先要做到谨言慎行。赏析：人要学会克制己欲，欲望过多，烦恼就多。什么都想得到，最后什么都得不到。放一颗平常心，或许就有意想不到的收获。处世戒多言，言多必有失。说话过多，就会出错，从而得罪别人。