I was unaware of this idea previously, so I'm curious to read what everyone thinks is the connection between this NAP concept has to Epicurus's basic "natural justice" contract of "neither harm nor be harmed." However, Cassius is correct in that it can't take precedence over pleasure/living a pleasurable life. It can at most be instrumental like virtue.
(Quote from ResponsiblyFree) From my perspective and understanding, taking out the morality clause gets it *closer* to an Epicurean social contract of "neither to harm nor be harmed." But I'll be interested to see others' ideas.