The mind is the organ of adjustment par excellence.

The future of energy lies in diversification - of sources, technologies, and business models.

锄地不因为旱涝灾害而停止，这样一定会得到一个丰收的年景。如果不勤劳耕作、不掌握正确的耕种方法，那怎么可能获得丰收呢？所以，我们凡事应该先从自己身上找原因，重视自己的主观能动性。

The purpose of business is to make a positive impact, not just a profit.

不要被他人的意见所影响。

Coal keeps America competitive in the world.