So, we have to choose foods, we have to navigate around the world, we have to recognize objects, we have to be able to understand physical interactions.

所以我们要选择食物，要寻找方向，要认识物件，要能够理解物理相互作用。

耶鲁公开课 - 心理学导论课程节选

Now, here's another document that you want to be aware of that gives you some idea of what the Greeks fairly early thought the polis was for and about, and what the relationship between individual and polis was.

现在,这有另一份你们应该注意的材料,它能让你了解一些早期希腊人,是如何认识城邦的作用和本质,以及个人与城邦之间的关系的

耶鲁公开课 - 古希腊历史简介课程节选