I wrote this son, my father and I wrote this song, for the acid victims of Kandahar City -- a few young girls who were trying to make their way home from school when they got attacked by acid.

VOA: standard.2010.03.08

This is my son, Zachary, pretty young but this is not the youngest record of laughing.

这是我儿子Zachary，他很小,还有比他更小的小孩发出笑声。

耶鲁公开课 - 心理学导论课程节选

This is my son, Zachary, pretty young but this is not the youngest record of laughing.

这是我儿子Zachary，他很小,还有比他更小的小孩发出笑声。

耶鲁公开课 - 心理学导论课程节选