 The model for such an approach is not Bentham or even J. S. Mill, but Aristotle, whose Ethics gave us “the Common Sense Morality of Greece, reduced to consistency by careful comparison: given not as something external to him but as what ‘we’—he and others—think, ascertained by reflection.” This was really, in effect, “the Socratic induction, elicited by interrogation” (Sidgwick 1874 [1907: xix]).