你喜欢的东西，并不意味着世界一定会给你。
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.
孩子需要玩耍的自由和时间。玩耍不是奢侈品，而是必需品。
知识是人类的最高财富，而分享知识则是最高的慷慨。
"To travel is to discover that everyone is wrong about other countries."
别让恐惧阻止你追逐梦想。
