Once it became true that people could raise food or gather food, or produce food for more than just themselves or their families, meant that people were free to do other things.

这些成为现实之后,人类不仅仅能为他们自己或家人,种植,收集或制造食物,也就是说人们可以有空来做别的事情

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选