Psychologist Jonathan Haidt presents five moral values he claims form the basis of our political choices, whether we’re left, right or center. Haidt isolates the moral values that liberals and conservatives tend to honor most. What’s interesting to me are those values we generally share with our opponents (harm/care, and fairness/reciprocity) that we don’t take advantage of to find common cause – our differences have been discussed at length elsewhere. I think you’ll find the talk interesting and entertaining, but if your computer is like mine, the sound comes on very loud at the beginning (you’ve been warned). Haidt has a test you can take to see how you score.