And in many ways, we can understand human intellectual history just based on this idea: ? should we accept human nature?

在很多方面，我们能理解人类智力发展历史,仅仅基于这个观点：,应不应该接受人类本性？

哈佛公开课 - 幸福课课程节选

Although I don't quite understand--I should say, there's many things about how the fighting went on which we can only attempt to imagine because we just don't have films of ancient hoplite battles, I'm sorry to say.

虽然我有时也很困惑,比如说,战场上瞬息万变,情况非常复杂,由于没有古代重步兵白刃战的影像资料,我们只能猜想战场上发生了什么,真的是很遗憾

耶鲁公开课 - 古希腊历史简介课程节选