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.

认知地图不是头脑中的一幅图或模型，而是环境的动态变化表征。

股市是唯一一个东西打折时所有人都跑出商店的市场。

忘记某事的最好方法是用更好的东西取代它。

生活就像一首美妙的音乐，只有歌词是错乱的。