"One of the things Robin Wells and I did when writing our principles of economics textbook was to acquire and study a copy of the original, 1948 edition of Samuelson’s textbook. It’s an extraordinary work: lucid, accessible without being condescending, and deeply insightful. His discussions of speculation and monetary policy are particularly striking: they run quite contrary to much of what was being taught just a few years ago, but they ring completely true in the current crisis. And he was, of course, the man who truly brought Keynesian economics to America — a contribution that now seems more relevant than ever."