 As a descriptive model of the two levels , Hare posited two extreme cases of people , one of whom would only use critical moral thinking and the other of whom would only use intuitive moral thinking . The former he called the ' archangel ' and the latter the ' prole ' . It is worth noting that it is not Hare 's intention to divide up the entire human race into either archangels or <unk> ; according to his theory each person shares the traits of both to limited and varying extents at different times . The archangel has superhuman powers of thought , superhuman knowledge and no weaknesses . This unbiased ' ideal observer ' , when presented with an unfamiliar situation , would be able to immediately scan all potential consequences of all possible actions in order to frame a universal principle from which he / she could decide an appropriate action for the situation . Such a person would not need a set of intuitive moral rules , as he / she would be able to decide the correct response to any possible situation by reason alone . By contrast , the prole has these human weaknesses to an extreme degree . He / she must rely upon intuitions and sound prima facie principles all of the time , as he is incapable of critical thought . The set of intuitive moral rules that the prole follows must be simple and general enough that they can be easily understood and memorised , and also quick and easy to use . 
