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幫助地球最有效的方法就是停止食用動物。

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

Well, the first rule is that you can’t really know anything if you just remember isolated facts and try and bang ’em back. If the facts don’t hang together on a latticework of theory, you don’t have them in a usable form.

Knowing what you don’t know is more useful than being brilliant.