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.

过去是远处的一支蜡烛：太近让你无法放弃，太远无法安慰你。

Don’t let your email inbox become your to-do list.

人生中最伟大的事情就是保持心态年轻。

成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜；真正的英雄主义是抵制这种怀疑；最深刻的智慧是知道何时应该抵制它，何时应该服从它。

可以通过对过去事件的观察，形成对未来事件概率估计的一般规则。