What is the best ethical framework upon which to hang the case for liberty? The libertarian debate over this question has long been cast as a contest between natural rights and utilitarianism. Murray N. Rothbard championed the natural rights position, most thoroughly in his 1982 book The Ethics of Liberty. And, in his 1978 preface to Ludwig von Mises’s The Clash of Group Interests and Other Essays, Rothbard criticized his mentor’s utilitarianism. Mises, for his part, wrote in his 1944 book Human Action that: "…the teachings of utilitarian philosophy and classical economics have nothing at...














