If you're an oil rich country today, as long as that oil lasts, you got the world kind of at your knees.

如果你今天是富油国,并且能保持稳定的产油量,那整个世界都会匍匐在你的跟前

耶鲁公开课 - 美国内战与重建课程节选

And one of the best analogies you can think of is the oil rich nations of the world in post-World War Two, in the post-World War Two era, whether it's Saudi Arabia, Iraq and Iran, the Emirates, or Venezuela, name--today Russia.

做个非常恰当的类比,你们可以把棉花想象成,二战后时期的石油,想想沙特阿拉伯,伊拉克,伊朗,阿联酋,委内瑞拉,和今天的俄罗斯吧

耶鲁公开课 - 美国内战与重建课程节选