Dear David: In my humble opinion, there are NO positive duties, only negative ones. You ask: Is the only positive duty that of if you break it, you must fix it sufficient I think that’s a NEGATIVE duty. It’s part and parcel of the negative duty not to violate the non aggression principle. Once we let the cloven hoof of positive duties into the tent, there’s no stopping them. Soon, we’ll have a positive duty to feed other people, not discriminate against them, who knows what else. We all have negative duties not to murder, not to rape, not to … Continue reading In Libertarian Theory, There Are Only Negative Obligations, Not Positive Ones