It was an extraordinary insight into how society works, and I stress the idea of society rather than the economy, because his attempt was really to think about not just the famous things like division of labour, or the efficiency with which resources were allocated, but also how they were distributed: whether it was done in a moral, ethical way. What is amazing about Smith is that he tried to relate economics to morals and ethics, in the sense that economics is only a small part of what society should be thinking about.