For a normal person,cleverness and stupidity are relative.I think someone is smart if he or she is good at handling and solving all kinds of problems.In contrast,if someone is not good at handling and solving problems,then this person is stupid as compared to the previous one.One lives in a conflict filled world all through one's life; the person him- or herself is also constantly in conflicts.If you can correctly handle all of the conflicts throughout your life,then you are an extraordinary person and a really clever person.However,many people can only handle some of the conflicts well and will always make mistakes,which lead them to a uneven life path.But they can not be regarded as stupid people,they are just regular people.Stupid people are those who seldom handles conflicts correctly,which are few in number.
供参考.