人通过克服困难而成长。
The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.
The problem is when that fun stuff becomes the habit. And I think that's what's happened in our culture. Fast food has become the everyday meal.
"We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct."
书籍是最安静、最恒久的朋友；它们是最易接近、最明智的顾问，也是最耐心的老师。
森林的真正价值不能仅用板英尺来衡量。
The decline of violence may be the most significant and least-appreciated development in the history of our species.