Bentham and Mill and probably most utilitarians have a good deal in common with Hobbes and Spinoza as moral thinkers. For they share a commitment to deriving ethics from the actual and normal motivitations of human beings as creatures of the natural world rather than, like Kant and many religious moralists, from some transcendent realm to the requirements of which natural man has a duty to submit without expecting any help therefrom in the satisfaction of his natural inclinations. In the (...) present context I shall call all such thinkers ethical naturalists, though I do not mean this expression in any very precise technical sense, only to indicate a commitment to somehow deriving morality from natural fact. (shrink)