But he started--the pigeons started to think, effectively, what was it I did just before that last piece of corn came?

那些鸽子会想,上一粒谷粒掉过来之前我做了什么

耶鲁公开课 - 金融市场课程节选

My father started it, but he died 19 years ago.

我的父亲是发起人，但是他19年前过世了。

麻省理工公开课 - 媒体、教育、市场课程节选