Is there a word for the condition somebody has when he thinks, "this is the way I think, therefore everyone thinks this way," or, "this is the way I do things so if other people don't do it this way, they're idiots." Or, "since it's not tough for me to eat small amounts of food, then it's not tough for anyone to eat small amounts of food?" It has something to do with Narcissism, but it's more like assuming everyone is like yourself and if they're not there is something wrong with them.