An Outline of a System of Utilitarian Ethics, in J. J. C. Smart and Bernard Williams, Utilitarianism For and Against, Cambridge, 1973, p. 19
John Jamieson Carswell Smart was a British-Australian philosopher who was appointed as an Emeritus Professor by the Australian National University. He worked in the fields of metaphysics, philosophy of science, philosophy of mind, philosophy of religion, and political philosophy. He wrote several entries for the Stanford Encyclopedia of Philosophy. Wikipedia
An Outline of a System of Utilitarian Ethics, in J. J. C. Smart and Bernard Williams, Utilitarianism For and Against, Cambridge, 1973, p. 19