The poet is a man who manages to be, in his own lifetime, what all men would like to be after their death.

自由的代价是永恒的警惕。

真正的能源解决方案来自真正的能源。

You don't have to have the ability that quantum mechanics requires.You just have to know a few simple things and really know them.

最先进的农业系统仍然依赖于最基本的要素：健康的土壤。

"The measure of a civilization is how it treats its weakest members."