数学家的模式,就像画家或诗人的模式一样,必须是美丽的;思想,就像颜色或文字一样,必须以和谐的方式结合在一起。
The good life is not one immune to sadness, but one in which suffering contributes to our development.
There are some things one remembers even though they may never have happened.
Security is not a feature, it's a foundation.
现实一点,要求不可能的事!