Davis Sloan Wilson gives us a very good and accessible introduction to modern evolutionary biology, and the theory of multilevel selection. It provides a deep and radical framework for thinking about how we as individuals fit in to groups, families and successively larger social organization. It also shows why neither the invisible hand, nor socialist central planning works. We have to build on the foundation that Darwin laid, which had nothing to do with “social Darwinism”, Ayn Rand B.S. or “greed is good”.