What is the 'mean' and why is hitting it difficult?

This week, the guys are on their own as they dive into Book III of Aristotle's Nicomachean Ethics. Discussion focuses primarily on an assessment of Aristotle's views on how we ought to evaluate people's actions under different circumstances. Further analysis covers the source of virtue and vice, and how humans tend to frame decisions when deemed good or bad, as well as problems with Aristotle's theory.