学校必须是孩子生活的地方，而不仅仅是为生活做准备的地方。

真相很少是纯粹的，也从不简单。

真正的艺术家总是在寻找生命的意义。

对付不自由世界的唯一方法就是变得如此绝对自由，以至于你的存在本身就是一种反抗。

Leadership in energy isn't about controlling resources—it's about stewarding them wisely.

The ideal of behaviorism is to eliminate coercion: to apply controls by changing the environment in such a way as to reinforce the kind of behavior that benefits everyone.

煤炭工业是美国的支柱。