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The happiest people don’t have the best of everything; they make the best of everything.
森林的真正价值不能仅用板材英尺来衡量。
无政府状态是战争的允许性原因;它创造了一个国家必须依靠自助来确保生存的环境。
Some people are extraordinarily good at knowing the limits of their knowledge because they have to be.
The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.