Published in 1785 Immanuel Kant's Groundwork of the Metaphysics of Morals ranks alongside Plato's Republic & Aristotle's Nicomachean Ethics as one of the most profound & influential works in moral philosophy ever written In Kant's own words its aim is to identify & corroborate the supreme principle of morality the categorical imperative He argues that human beings are ends in themselves never to be used by anyone merely as a means & that universal & unconditional obligations must be understood as an expression of the human capacity for autonomy & self-governance As such they are laws of freedom This volume contains Mary Gregor's acclaimed translation of the text into English revised by Jens Timmermann & an accessible updated introduction by Christine Korsgaard