Others include anti-slavery activist Frederick Douglass, birth control activist Margaret Sanger and Special Olympics founder Eunice Shriver.

VOA: special.2010.04.16

It could be Frederick Douglass. It could be Dorothy Day.

可以是弗雷德里克，道格拉斯，可以是多萝西，戴伊。

普林斯顿公开课 - 人性课程节选