This well-considered collection of primary texts and analytical commentaries manages to introduce some of the fundamental themes of philosophical inquiry (identity, quality, freedom, causality) without shortchanging the real work of abstract thinking that leads to genuine philosophical insight. Unfortunately, many introductory works merely summarize the views of major thinkers. The strength of this collection is that the arguments that make those views important and worthwhile are foregrounded and treated in comprehensive detail. While the included texts (by Descartes, Berkeley, Hume, Schopenhauer, as well as Bernard Williams, Robert Nozick and P.F. Strawson, among several others) can be quite dry, only a reader whose interest in philosophy remains merely superficial could possibly fail to find worlds of fascination and grounds for further reflection in and among these works. The editorial commentaries following each primary text are admirably concise and clear. An excellent main text for introductory courses in philosophy.