So ever since then our family has been in the peanut business."

VOA: standard.2010.08.10

So ever since then and when I came back to Princeton, then we formed a center to study those problems.

所以从那以后，在我回到普林斯顿大学时，我们组成了一个中心研习这些问题。

普林斯顿公开课 - 人性课程节选