Civilization is a stream with banks. The stream is sometimes filled with blood from people killing, stealing, shouting and doing the things historians usually record, while on the banks, unnoticed, people build homes, make love, raise children, sing songs, write poetry and even whittle statues. The story of civilization is the story of what happened on the banks.
文明是一条有岸的河流。河流有时充满了人们杀戮、偷窃、喊叫和做历史学家通常记录的事情的血，而在岸上，不被注意，人们建造家园，做爱，抚养孩子，唱歌，写诗，甚至雕刻雕像。文明的故事是发生在岸上的故事。
The most effective way to destroy people is to deny and obliterate their own understanding of their history.
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
心理学家必须研究心灵的实际状态，而非理想状态。