Let's talk about more ancient societies and how food got started and what sort of phases we've gone through and how does that shape what's going on today.

让我们更深入地讨论古代社会及食品起源,还有我们经历了哪些阶段,这些阶段是如何影响我们现在的饮食

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选