Watch this lecture until 28:25. Michael Sandel introduces a third major approach to morality: Immanuel Kant's deontological, or duty-based, ethics. In contrast to the utilitarian philosophers, Kant holds that an action's consequences are not what make it right or wrong. We need to focus on the principle on which the action was based. Kant's view is similar to Locke's in that he ascribes fundamental rights to persons, but what really sets Kant apart is his insistence that even if we do the right thing, we have not acted morally unless we have also acted for the right reason.