盖亚假说是一种将地球视为有生命的系统的方式，不是情感上的，而是作为一个系统。

真正的朋友是很难找的。

The principles of logic and mathematics are true universally simply because we never allow them to be anything else.

你必须愿意失败，愿意犯错，并不断尝试。

"The past is never dead. It's not even past."

Those who cannot remember the past arecondemned to repeatit.