Abstract

This dissertation examines the relationship between ignorance and responsibility. Ignorance is often treated as an excuse, but there are times when ignorance does not excuse. Ignorance that does not excuse is usually known as culpable ignorance. Since ignorance is largely an epistemological concept, the difference between culpable and exculpating ignorance suggests a connection between epistemology and theories of responsibility that has gone relatively unexplored. The following work explores this connection and argues that incorporating epistemological theories will help provide a robust account of both the ignorance excuse and culpable ignorance. The project begins by pointing out that some highly intuitive accounts of culpable ignorance seem remarkably like theories of epistemic justification. As such, epistemic justification seems like the best candidate for an epistemological concept that might share a connection with the culpable ignorance literature in moral philosophy. I argue that there is a theory of epistemic justification that captures our intuitions regarding culpable ignorance. Its close connection to our practices gives us good reason to think that, if this theory of justification is right, then the following is true: one’s ignorance exculpates only if it is justified, and one’s ignorance is culpable only if it is not justified. I call this the Justification Thesis. Once I establish the Justification Thesis, I defend it against various possible objections. First, the Justification Thesis is a derivative account of culpable ignorance, and it is often thought that derivative accounts are forced into responsibility skepticism. I argue that this is not true. Second, it is often thought derivative accounts like the Justification Thesis are open to a large class of counterexamples. I examine a few common alleged counterexamples and argue that they trade on ambiguities that, I suggest, are shared by every purported counterexample. When disambiguated it turns out they are not counterexamples after all. Third, some question whether ignorance with moral content exculpates. I argue that the Justification Thesis captures our intuitions regarding moral ignorance. Finally, I address a challenge to the initial assumption that culpable ignorance does not excuse and argue that this challenge is mistaken.