<B>The 250th-anniversary edition of the influential treatise on social responsibility that has shaped leaders from Bill Gates to Barack Obama</B><BR><BR> Best known for his revolutionary free-market economics treatise <I>The Wealth of Nations</I>, Adam Smith was first and foremost a moral philosopher. In his first book, <I>The Theory of Moral Sentiments</I>, he investigated the flip side of economic self-interest: the interest of the greater good. SmithÂ's classic work advances ideas about conscience, moral judgment, and virtue that have taken on renewed importance in business and politics.