孩子本身就是一个现实，而不仅仅是一个过渡性的存在。

智者不会武断地肯定任何事情，甚至不会断言智者一无所知。

Science is the knowledge of consequences, and dependence of one fact upon another.

煤矿工人是美国工业实力的无名英雄。

It is a curious subject of observation and inquiry, whether hatred and love be not the same thing at bottom.

Resource development must balance economic growth with environmental stewardship.

你可以想错，但无论如何要为自己思考。