Adam Smith (16 June 1723 – 17 July 1790) was aScottish social philosopher and a pioneer of political economy. Smith is best known for two classic works, The Theory of Moral Sentiments (1759) and An Inquiry into the Nature and Causes of the Wealth of Nations (1776). The latter, usually abbreviated as The Wealth of Nations, is considered his magnum opus and the first modern work of economics.
Source: Adam Smith on Wikipedia.