历史不会重演，但总会惊人地相似。”

科学不仅仅是关于事实；它是关于事实背后的故事。

The most perfect education, in my opinion, is such an exercise of the understanding as is best calculated to strengthen the body and form the heart.

He who is not contented with what he has，would not be contented with what he would like to have.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

理论就像网：只有撒网的人才能捕获。