成功的真正标准不仅仅是利润，而是你对人和环境产生的影响。
She walks in beauty, like the night
The challenges of today's coal industry require bold leadership and vision.
通过别人的鞋可以了解很多东西，他们从哪儿来，将要到哪儿去。
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
The only way to do great work is to love what you do.