If you come to believe, if you say to the world, "We are the hope of humans, we are the hope of earth, we are progress.

如果你开始相信,并向全世界发出宣言,"我们是人类的希望,是世界的希望,也是进步的力量

耶鲁公开课 - 美国内战与重建课程节选

Suppose that if you--Suppose we believed--we had good reason to believe-- if you really took seriously the thought that you were going to die, you couldn't stop screaming.

假设我们有很好的理由相信-,如果你确实很认真地相信自己会死，你会尖叫不断这个事实。

耶鲁公开课 - 死亡课程节选