The classical age of economics was marked by an intense interest in scientific methodology. It was, moreover, an age when science and philosophy were not yet distinct disciplines, and the educated were polymaths. The classical economists were acutely aware that suitable methods had to be developed before a body of knowledge could be deemed philosophical or scientific. They did not formulate their methodological views in a vacuum, but drew on a rich collection of philosophical ideas. Consequently, issues of methodology were at the heart of political economys rise as a science.