Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Thumb down

This is my first book on Ayurveda. It meets my expectation but I have to take 3 stars off - one off as I don't like beauty book which sells a certain brand or line of product. It's hard to read a book with clouded conscience. Second off because the mentioning of natural science, especially physics is out of place and very silly. Thirdly, the ideas are so diluted that I keep skipping lines to look for the points. Not a very pleasant experience.