Internalism and the evidence from psychopaths and "Acquired Sociopaths"
In Walter Sinnott-Armstrong (ed.) Moral Psychology, Volume 2: The Cognitive Science of Morality: Intuition and Diversity, Cambridge, MA, 2008, pp. 173–190
In Walter Sinnott-Armstrong (ed.) Moral Psychology, Volume 2: The Cognitive Science of Morality: Intuition and Diversity, Cambridge, MA, 2008, pp. 173–190