文化进化的研究必须考虑社会的内部动态和外部环境约束。

Every discovery in science is built upon the work of countless others before us.

The fact remains that getting people right is not what living is all about anyway. It's getting them wrong that is living, getting them wrong and wrong and wrong and then, on careful reconsideration, getting them wrong again.

全人类...都是平等和独立的，没有人应该侵犯他人的生命、健康、自由或财产。