Size reduction, as an evolutionary consequence of island habitation, is not universal, it's not a “law” of nature;
体格的缩小是一项岛屿栖息地的进化结果，它并非是通用的，它并非自然的“法则”。
Even if a pattern of behaviour is almost universal, we can't know in advance if it is a law of nature we cannot change or simply a remnant of our primitive past that we can and should modify.
即使一种行为模式是近乎普世的，我们也无法预先知道它究竟是一个我们不能改变的自然法则，还是只是一种我们能够并且应该改变的原始陋习。
This law is universal, unchanging, and a fundamental part of human nature.
这项法律是普遍的，不变的，和一个基本组成部分人类的本性。
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