Martin Prince is one of Bart's classmates on The Simpsons and is a genius.  Unfortunately, his nerdy characteristics make him a target for bullies.  He and Bart, although rivals at points, seem to prove to be friends and have even gone on an epic road trip together.

Martin Prince Quotes

Principal Skinner: Whoever did this is in very deep trouble.
Martin: And a sloppy speller too. The preferred spelling of "wiener" is 'W-I-E-N-E-R', although 'E-I' is an acceptable ethnic variant.

Martin: Bart, I hope you won't bear some sort of simpleminded grudge against me. I was merely trying to fend off the desecration of the school building.
Bart: Eat my shorts.

The Simpsons Quotes

Officer Eddie: (reading Steve Sax's license) Well well, Steve Sax, from New York City.
Officer Lou: I heard some guy got killed in New York City and they never solved the case. But you wouldn't know anything about that now, would you, Steve?
(Lou and Eddie laugh)
Steve Sax: But there are hundreds of unsolved murders in New York City.
Officer Lou: You don't know when to keep your mouth shut, do you, Saxxy Boy?

Wow, now I see why they call you Miss Hoover. You must have been vacuuming for an hour.

Bart