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"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The secret of success is learning how to use pain and pleasure instead of having pain and pleasure use you. If you do that, you’re in control of your life. If you don’t, life controls you.

數學的本質不是把簡單的事情復雜化，而是把復雜的事情簡單化。

一本好書的標準在于它能在多大程度上擾亂讀者的心緒。

科幻小說是思想的文學，而思想才是最重要的。