The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.

Coal built this country, and coal will keep it strong.

文学让我们在一生中活出千种人生。

美国没有永恒的敌人，也没有永恒的朋友，只有永恒的利益。

The heart of the brave can never be enslaved.

最好的尚未到来。

居家时不是有才德的人，入朝做官也不是好官。小时候不是一个好的学生，将来不能够成为一个有才德的人。

True architecture emerges from constraints.

在石油和天然气行业，技术是提高效率和减少环境影响的关键。

智慧总是在它不再有任何用处时才降临到我们身上。