First of all, cannibalism, I believe, is morally incorrect so you shouldn't be eating human anyway.

首先，我认为食人有违伦理,你不管怎样都不该吃人。

耶鲁公开课 - 公正课程节选

Now there are challenges to a plant based diet which made eating meat important to humans in human history.

在人类历史上,以素食为主的饮食方式面临各种挑战,使得进食肉类变得重要

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This probably is not because use of eating utensils is human nature, but rather, it's because it's just a very useful thing that cultures discover over and over again.

之所以都用餐具,并不是因为使用餐具是人类本性,而是因为,所有文化都不断发现,餐具非常的实用

耶鲁公开课 - 心理学导论课程节选