Innovation is not an option; it's a necessity for the survival of the coal industry.
一个人做了好事应当忘记，不要念念不忘，更不要希冀别人回报。
The difference between a dream and a goal is action.
预测未来的最好方法就是创造未来。
The only thing that can make you a hero is your heart.
我不是下一个尤塞恩·博尔特或迈克尔·菲尔普斯。我是第一个西蒙·拜尔斯。