我想揭示大自然的秘密，用来造福人类。我认为，在我们的短暂一生中，最好的贡献莫过于此了。

以物易物、互通有无的倾向是人类共有的，也是其他动物所没有的。

We cannot change, we cannot move away from what we are, until we thoroughly accept what we are.

"I don't believe in writer's block. I believe in laziness."

Don't drift into self-pity because it doesn't solve any problems.

世界的历史是用山脉的语言书写的。