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

One belief in common is obviously not enough.

共同的信念明显是不够的。

耶鲁公开课 - 死亡课程节选