Bronowski, in the above quote, was referring to the collapse of the Greek city state. His argument was that specialist forms of work gave rise to the city and remained its life-blood. Cities are the places where work is organised around specialisms, exchange, consumption, trade and innovation. It was this realisation that prompted Adam Smith to write The Wealth of Nations, fascinated as he was by the prosperity of Kirkcaldy and the growth of Glasgow during the mid-eighteenth century.1