"If one writing contributed more than any other to the framework in which this work Sowell's Knowledge and Decisions developed, it would be an essay entitled 'The Use of Knowledge in Society,' published in the American Economic Review of September 1945, and written by F. A. Hayek . . In this plain and apparently simple essay was a deeply penetrating insight into the way societies function and malfunction, and clues as to why they are so often and so profoundly misunderstood."