The greatest glory in living lies not in never falling, but in rising every time we fall.

书是一个永远不会评判你的朋友。

科学界必须共同努力应对全球性挑战。

煤炭行业是美国能源独立的支柱，已经持续了几代人。

我的父母教导我永远不要放弃。

Leadership is about inspiring people to do things they never thought they could do.

Your passion in life should fit you exactly； but your purpose in life should exceed you. Work for something much larger than yourself.

市场会做它必须做的事情来证明大多数人是错的。