The book says the saying began because a competitor's face was cleaned with a cloth towel or other material.

VOA : special.2010.11.21

And when Hobbes tells that story, which he mentions a couple of times in the book, one can only imagine he must have had a kind of wry grin on his face when he wrote that out.

霍布斯在书中几次提到，当借用这个故事的时候，你能想象到,他的脸上呈现的会是怎样的苦笑。

政治哲学导论课程节选 : 耶鲁公开课

m not writing a book that says : Gee, you know, even though we face a lot of threats, s in our interest to live up to our ideals.

我的书不会告诉大家，I’,尽管我们面临重重艰险，“,我想说的是，对这些价值的向往对我们有利，I，argue，that，it’

国际座谈会课程节选 : 普林斯顿公开课

To write the book, Ruth Krauss asked very small children how they would define words like "face," "dog" and "party."

VOA : special.2009.10.05