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.

伟大的事业通常是在巨大的风险中完成的。

解释：了解古代不了解现在，称为愚昧无知，那么儒生就只能称作愚昧无知的人了。

To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.

没人会和你自己一样对你所拥有的东西印象深刻。（Morgan Housel《金钱心理学》里面的一句话，可以理解为禀赋效应：即，由于情感上的偏见，人们在自己已经拥有的东西上比尚未获得的东西拥有更大的价值）

【释义】过度保护抑制型儿童，等于剥夺他们学习应对恐惧的机会。