Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A little Keynes is most welcome these days

While other reviewers have justly criticized Samuelson for being model-bound (as most economists are) and dragging the Phillips Curve out of its grave, this remains a fine introduction to basic economic concepts, including the notion that some kinds of wealth are subjective and not quantifiable. Most of the reviewers a-froth over Samuelson name other fine econ primers -- Hazlitt's, Friedman's, etc. -- but the reader should note that their bias is to call democratic socialism imprisonment, and taxes theft. Frankly, I'd recommend reading both sides, and then reading essayists like Galbraith and his conservative counterparts for some descriptive reality, which is in short supply in most econ textbooks.