British philosophy as "The Wealth of Nations", is considered his "magnum opus" and the first modern work of economics. Smith is widely cited as the father of modern economics. Smith studied moral philosophy at the University of Glasgow and the University of Oxford. After graduating, he delivered a successful series of public lectures at Edinburgh, leading him to collaborate with David Hume during the Scottish Enlightenment. Smith obtained a professorship at Glasgow teaching moral philosophy, and during this time he wrote and published "The Theory of Moral Sentiments". Jeremy Bentham (1748–1832) is well known for beginning the tradition of classical utilitarianism in
Jeremy Bentham the felicific calculus, Bentham proposed a classification of 12 pains and 14 pleasures, by which we might test the "happiness factor" of any action. Nonetheless, it should not be overlooked that Bentham's "hedonistic" theory (a term from J.J.C. Smart), unlike Mill's, is often criticized for lacking a principle of fairness embodied in a conception of justice. In "Bentham and the Common Law Tradition", Gerald J. Postema states: "No moral concept suffers more at Bentham's hand than the concept of justice. There is no sustained, mature analysis of the notion..." Thus, some critics object, it would be acceptable to torture one