Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It definitely changed the way I think about things

Since so many reviews have been written, I will keep this brief. In short it has altered the way I think about things. At times the theme seemed repetitive, but with each repetition, a slightly new perspective on evolution was revealed. Dennet is almost annoyingly thorough in his analysis of the conceptual ramifications of evolution, and in his application of these concepts in fields beyond the strictly biological. By the end of the book, you cannot fail to see one of the most thorough conceptual pictures of evolution. I think he understands evolution far better than most biologists.