All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.
希望好像一个家庭，没有它，你会觉得生活乏味；有了它，你又觉得天天为它辛劳，是一种烦恼。
自由不是任何人可以给予的东西。自由是人们夺取的，人们有多想要自由，就有多自由。
The people who are crazy enough to think they can change the world are the ones who do.
The mind is a system for making life possible.
The only freedom which deserves the name is that of pursuing our own good in our own way， so long as we do not attempt to deprive others of theirs， or impede their efforts to obtain it.
物种和系统的多样性不是复杂，而是保险。