图书馆里充满了思想——也许是最危险和最强大的武器。

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.

愉快是健康的最佳促进者。

生活是一系列自然和自发的变化。不要抗拒它们；那只会带来悲伤。让现实成为现实。让事物以它们喜欢的方式自然流动。