Wisdom acquisition is a moral duty.It's not something you do just to advance in life...You are not going to get very far in life based on what you already know.You're going to advance in life by what you learn after you leave here.
领导力意味着做出今天艰难的决定，以造福子孙后代。
矿工的技能和奉献精神与他们带到地面的煤炭一样宝贵。