He started of his career as a lecturer at Glasgow University where was appointed Professor of logic and later switched to the post of Professor of moral philosophy. A well-educated man, he had knowledge and interests in a variety of subjects such as history, science, astronomy, philosophy, and physics. He was also a linguist and knew English, Latin, Greek, French, and Italian. His books “The Theory of Moral Sentiments” and “An Inquiry into the Nature and Causes of the Wealth of Nations” were both very well received. He revolutionized trade and economics of the 18th and 19th century by advocating free trade, privatisation and liberalization of the economy. Adam Smith’s ideas on economics have resulted in economic expansion, world trade, and privatisation of the market.