So we now have a real usable criterion to help guide our understanding of whether things happen by themselves of their own accord or not.

所以我们找到了一个非常有用的判据,这个判据能够指导我们,弄明白变化是否,是自发发生的。

麻省理工公开课 - 热力学与动力学课程节选

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

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