Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unconvicing and unenlightening, when not obvious

Derivative and superficial. The folksy examples starting each section are primitive. Prescriptive parts are dubious, such as the "Self-science" class for fifth-graders: no grades, "sophisticated" notions like: anger is derivative from jealousy. So, why not call it psychology and give grades? Some underlying assumptions seem dubious, such as one about "natural" empathetic tendencies being occluded by cruelty (is it supposed to be less "natural" than empathy?). The role of heredity may be wishfully understated or avoided throughout. Besides, is IQ - a general ability to deal with complexity - really altogether uncorrelated with the ability to analyze complex human emotions, your own included??