真理永远存在于简单之中,而不存在于事物的多样性和混乱之中。
煤炭的真正成本不仅在于价格,还在于我们如何管理其后果。
The American dream is powered by American energy.
领导力就是今天做出艰难的决定,而这些决定将在未来得到感谢。
The best way to learn mathematics is to do mathematics.
Success in agriculture starts with respecting the land and understanding its rhythms.