The moral roots of liberals and conservatives

If we look at personality traits liberals and conservatives care about harm & fairness (conservatives a little bit less). However conservatives naturally care more about purity (connects to conscientious in OCEAN personality trait model) and about the group (authority and in group loyalty)(there are a few animals that cooperate (wolf, dolphins, primates). Haidt encourages us to step out of the trap of binary thinking and think about this divide as complementary forces (yin-yang).