Between the 1620s and the 1740s, the land of the Russian empire increases from 2.1 million square miles to 5.9 million square miles.

在17世纪20年代到40年代间,俄帝国的领土,由210万平方英里,增加到590万平方英里

耶鲁公开课 - 欧洲文明课程节选

So Lesson 2, and this lesson probably wouldn't be worth stating, if it wasn't for sort of a century of thought and economics that said the opposite.

结论二,若要不是经济学,近一个世纪来讲的是相反的道理,这个结论都不值得一提

耶鲁公开课 - 博弈论课程节选