extremely intelligent people

Smart people who are not naturally born are smart but they must work hard to achieve it
surely few of us know that: smart people who are not born naturally are smart, but they must work hard to achieve that, right? let's find out the information in the article below!
Why are 'C' students the most successful people in the world?
why are c-graders the most successful in the world? let's find out in the article below!