Southerners shared with Northerners a faith in progress, if you breathed the air in American in the 1840s and '50s.

南方人和北方人对发展有共同的信念,十九世纪四五十年代的美国就是例子

耶鲁公开课 - 美国内战与重建课程节选

The idea was to think of a strategy that is the best you can do, given your belief about what the other people are doing: what your opponents are doing, what other players are doing.

在你已经对别人如何行动有一定信念时,你能想到的最佳的策略,你的对手会怎么做,其他人又会怎么做

耶鲁公开课 - 博弈论课程节选