Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Marginal at best, barely worth one point, let alone five

This was very disappointing. Lots of emotionalism, little of philosophical value. I read the book to try and understand the viewpoints of those who apparently don't believe in knowing where they are going before they leave. (Which of course would make one wonder how they knew when they had arrived?) I'd include my email address but I don't want those who believe in this book to fill up my in-box!I'm not certain of its Btu value but, dear reader, that's exactly all it is good for.