出自春秋·鲁·孔子《论语》。孔子杜绝了四种弊病，不妄意，不妄下决断，不固执，不以自我为中心。

In the short run, the market is a voting machine but in the long run, it is a weighing machine.

动力学的方程在用变分法的语言表达时是完全的。

The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one as it flies past.

A picture held us captive. And we could not get outside it, for it lay in our language and language seemed to repeat it to us inexorably.