Every teacher likes the top students who can always get the high mark in the exam. So it is natural for people to believe that a good student must be good at the exam. In my opinion, the definition of a good student should not be the one who has the high intelligence. For most students, they are not in the top list, but they study very hard and fight for their goals. The spirit of never give up makes them the charming persons. We don't need the study machine. People always attach the importance of diversity, which means students have different abilities, so we can't judge them by one rule.