Why Conservatives Can't Understand Liberals (and Vice Versa)

What Haidt found is that both conservatives and liberals recognize the Harm/Care and Fairness/Reciprocity values. Liberal-minded people, however, tend to reject the three remaining foundational values—Loyalty/betrayal, Authority/subversion, and Sanctity/degradation—while conservatives accept them. It's an extraordinary difference, and it helps explain why many liberals and conservatives in America think the other side is bonkers.