The Spirit of the Age Bentham (1748–1832) was an English philosopher, jurist, and social and legislative reformer. He was a major proponent of Utilitarianism, based on the idea of "the greatest happiness of the greatest number", which he was the first to systematise, introducing it as the "principle of utility". Hazlitt's link with Bentham was unusual, as Bentham was his landlord and lived close by. Bentham would sometimes take his exercise in his garden, which was visible from Hazlitt's window. The two were not personally acquainted, yet what Hazlitt observed enabled him to interweave personal observations into his account of the older man. Bentham was
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