Second,Grades can't determine everything what you are. If you cheat on something for instance you get a good grade but it could still mean your not that smart because you cheated not that smart. It could mean your smart in other places as well. Not trying means you just don't take it seriously but it doesn't mean your not intelligent. If you have an F on your report card, it might mean you weren't trying or cheated on something and lowered your grade your probably still smart.