一切迄今为止社会的历史都是阶级斗争的历史。
The history of all hitherto existing society is the history of class struggles.
永远要努力在你的生活之上保留一片天空。
在计算中，将显而易见的东西变成有用的是“挫折”一词的活泼定义。
If you don't fail at least 90 percent of the time, you're not aiming high enough.
Psychology must be based on facts, not hypotheses.
The study of automorphic forms is a reflection of the unity of mathematical ideas.