“Morality isn’t just about stealing and killing and honesty, it’s often about menstruation, and food, and who you are having sex with, and how you handle corpses.” –Jonathan Haidt
Jonathan Haidt’s research into disgust and politics is fascinating. For example, many conservatives are disgusted by the ideal of gay sex and are therefore against gay marriage. Libertarians tend to have the lowest levels of disgust. I saw a TED talk of his in which he said that most people would find it disgusting to contemplate, but college students are able to consider “eating their pets”. College is an environment designed to encourage openness — the ability to think of things in novel ways, and entertain unconventional beliefs. Here’s a lecture by Haidt on Reason that’s a good intro to some of his ideas.