一幅画本身必须美丽,而不是因为它代表美丽的事物。
The purpose of computing is insight, not numbers.
数学的本质不是使简单的事情复杂化,而是使复杂的事情简单化。
It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.