1. We are born able to automatically absorb the rules of our mother tongues just by hearing other tongues using them. Like our language-rule-processors we have social-rule-processors that acquire (tacitly or by explicit education) our cultures social rules/norms. 2. As with grammar, certain “moral” rules feel right, and they’re neither choosable nor easily changeable. 3. An “impulse to follow rules… seems …innate” in humans (Gopnik). Toddlers “act in a genuinely moral way,” understanding that rules shouldn’t be broken. Moralities, like languages, have underlying commonalities (Haidt reports six configurable ingredients: fairness, care, liberty, loyalty, authority and sanctity). - http://bigthink.com/errors-we-live-by/it-is-in-our-nature-to-need-rules