'Internalism’ in ethics is a cluster of views according to which there is an ‘internal’ connection between moral obligations and either motivations or reasons to act morally; ‘externalism’ says that such connections are contingent. So described, the dispute between internalism and externalism may seem a technical debate of minor interest. However, the issues that motivate it include deep problems about moral truth, realism, normativity, and objectivity. Indeed, I think that some philosophers view externalism as undermining the ‘dignity’ of morality. They (...) might say that if morality needs an ‘external sanction’ - if the belief that one has an obligation is not sufficient motive or reason to do the right thing- then morality is debased in status. Even an arbitrary system of etiquette could attract an external sanction under appropriate conditions.Although I believe that the more interesting internalist theses are false, there are important truths that internalism is attempting to capture. The most important of these is the fact that moral judgments are intrinsically ‘normative’ or ‘choice-guiding,’ that they are, very roughly, relevant to action or choice because of their content. (shrink)