 Psychopaths, who are diagnosed using a standard psychopathy checklist (Robert Hare 1991) are individuals who appear to be cognitively normal. They typically do not have impaired reasoning abilities, and they are aware of and seem able to comprehend prevailing moral and social rules. However, psychopaths often engage in antisocial behavior and they manifest no guilt or remorse for their morally aberrant behavior. Since psychopaths apparently can, and often do make moral judgments that they are not motivated to comply with, they seem to pose a problem for internalists. Indeed, borrowing an apt locution from Roskies (2003), psychopaths would appear to be “walking counterexamples” to  internalism.[26]