ask that question briefly it's too big a question but I can tell you some features beliefs are characteristically I justified beliefs required justification in a way that desires and hunches don't and beliefs are currently justified by their position within a network of other beliefs and other intentional states and above all a network that contains perception so you see that the dog is in the living room and that is a kind of a boring belief but you come to the believing the dog is in the living room so you have beliefs