With the invention of writing, you start getting cities. This is blurry. I kind of like that because it makes it look like a one-celled organism and reminds you how many levels organic organization has already moved through to get to this point. And then you get to, you know, you get empires.
随着书写的发明，城市出现了。这个关系看上去有点牵强。但是我很喜欢， 整个过程就像刚才所讲的单细胞组织的进化过程， 有机体经过层层演化， 才成了今天的样子。接下来的，你们一定猜到，是帝国。