那些疯狂到认为自己能够改变世界的人，才能真正改变世界。

The essence of mathematics lies in its freedom.

自然之美是上帝的语言。

I cannot and do not live in the world of discretion, not as a writer, anyway. I would prefer to, I assure you—it would make life easier. But discretion is, unfortunately, not for novelists.

释义：人依赖衣食，就像鱼依赖水；国家依赖人民，就像人依赖双脚。鱼没水活不了，人没脚则寸步难行。