In 'The Sources of Normativity', Christine Korsgaard argues, a la Kant, that we must value the humanity of others ultimately because we must value our own humanity. I examine her argument for the claim that we must value our own humanity. I argue that the sense in which this is so fails to generate a sufficiently robust account of moral obligation and that Korsgaard therefore fails to explain the foundations of normativity
Baehr, Jason S. “Korsgaard on the Foundations of Moral Obligation.” Journal of Value Inquiry, vol. 37, no. 4, Jan. 2003, pp. 481–491.