一个人是危险的，一个没有什么可失去的人更危险。

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。

我不需要太多。浮华和那些东西不会让我兴奋。我只是很高兴我有能力产生影响。

历史不仅仅是关于发生了什么，而是关于被记住的内容和方式。

"Time is a river that carries us away, but it also leaves behind traces of our existence, like footprints in the sand."

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.