The nature of jealousy – jealousy is based on an assumption of being equally entitled hence though a child is not jealous of their parent’s real car, as they are aware that they are not allowed to drive; if you give say a toy car to one boy twin, you better give one to his brother – now jealousy like a drug causes true insanity, as people will dedicate their lives to " righting the wrong" in current times it is the motivating force behind all terrorism, which of course is Islamic jealousy ( for in their estimation Islam is entitled to be the super- power – it is what drives isis etc.) – the antidote to jealousy is to kill its basis which occurs when we are happy ( for ultimately being jealous is based on want)