This course examines several related questions about knowledge and belief in society. We begin by asking what knowledge and truth might be, and how they have been classically understood. We then ask core questions about what we know: Is knowledge or truth relative to culture,society or tradition? How should an individual knower treat the fact that other equally intelligent people disagree? And since we rely on others for knowledge, when can we trust them? Finally, we ask what the political and ethical repercussions might be o relativism or disagreement.