There are a couple of watersheds in human evolution. Most people are comfortable thinking about tool use and language use as watersheds. But the ability to play non-zero-sum games was another watershed.
Jonathan Haidt[W]hen a group of people make something sacred, the members of the cult lose the ability to think clearly about it. Morality binds and blinds.
Jonathan HaidtIf I believe that abortion is wrong, and I want to convince you that it's wrong, there's no reason I should recount to you my personal narrative of how I came to believe this.
Jonathan HaidtWhile it is useful to rebut charges and get your arguments out in circulation, you have to understand that arguments and evidence have little impact on people as long as their feelings tilt them against you.
Jonathan Haidt