真正的自由是内心的自由。
The true value of a forest cannot be measured in board feet alone.
Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.
宇宙不仅比我们想象的更奇怪，而且比我们能够想象的还要奇怪。
People who are really serious about software should make their own hardware.
Hard work beats talent when talent doesn’t work hard.