Instruct: Classify Amazon reviews into positive or negative sentiment
Query: the most idiotic book in Christendom

Having nothing deeper to say than "You should like yourself because it's better than not liking yourself," the author happily inflicts such circular inanities on us as: "You should always try to do the right thing. If you call kids names, start fights, or somehow hurt others, you won't feel good about yourself because you know that you are doing something that is wrong."