The Worldly Philosophers not only allows us to gain a deeper understanding of our past, but also of our present. Robert L. Heilbroner introduces a fresh subject in this seventh edition that unites thinkers as disparate as Adam Smith and Karl Marx. The theme is the effort to understand how a capitalist society works, which is the common emphasis of their widely divergent perspectives. It’s a concentration that’s never been more important than now, in this era of perplexing economic headlines.