I am a writer of books in retrospect. I talk in order to understand; I teach in order to learn.

I am a writer of books in retrospect. I talk in order to understand; I teach in order to learn.

现在回想起来，我是一位作家。我说话是为了理解;我教书是为了学习。

-- Robert Frost 罗伯特·弗罗斯特