The rewards of reading and re-reading this small, sure-to-be-a-classic volume are limitless. When one grasps Professor Frankfurt's thesis, one's life is changed forever. While a very funny book, it is not a joke book or anything to be taken lightly. It reflects serious analysis of a subject that we all think we know but don't really. The last sentence of the book says it all.Upon reading my review on-line, I realized that I had hit the wrong button and given this book only one star when I meant to give it five and so I am now attempting to correct it...and that's no BS.