An exceedingly confident student would in theory make a terrible student. Why would he take school seriously when he feels that he can outwit his teachers?
I don’t know what’s the matter with people: they don’t learn by understanding, they learn by some other way by rote or something. Their knowledge is so fragile!
Basically, when you get to my age, you’ll really measure your success in life by how many of the people you want to have love you actually do love you.