在自然状态下，所有人确实生而平等，但他们不能保持这种平等。社会使他们失去了这种平等，他们只有通过法律的保护才能重新获得它。
In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.
生命中最重要的问题往往没有答案，而我们必须学会与这些问题共存。
“追求科学不仅是一种职业，而且是一种生活方式。”
Friends have all things in common.
To avoid criticism, do nothing, say nothing, be nothing.
"The free, exploring mind of the individual human is the most valuable thing in the world."