Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book left me flat.

The other reviews sing its praises, but for me this book was strident, petulant and kind of boring. Funny how a book, like a restaurant, can leave one person enthralled and another wondering what all the fuss is about. I typically distrust books that have to invent new words to encapsulate their views. The authors certainly seem sincere in their critique of just about every belief system and organizing principle, and I'm sure they have given a lot of people a lot to ponder, but the writing style is so flat and they just seem to try a little too darn hard to make their sometimes obvious and sometimes obscure points. Oh well, there's room for everyone, and one day I may have a different opinion of a book that for now seems like the whining of two very smart but not very happy people.