昨天我是一只狗……今天我是一只狗……明天我可能还是一只狗……唉!这进步的希望真是小啊!
The first rule of government spending: why build one when you can have two at twice the price?
数学是给不同事物赋予相同名称的艺术。
Mathematics is the organ with which we comprehend the phenomena of nature.