Bartholomew "Bart" Simpson is voiced by Nancy Cartwright (that's right, a woman!) and is Homer and Marge's only son on The Simpsons.  Bart is an underachiever and was definitely much more of a bad boy in th ebeginning seasons of the show.

Now, Bart, although he has not aged, has certainly matured as a character.  Do the Bartman people.

Bart Simpson Quotes

Damn TV, you've ruined my imagination, just like you've ruined my ability to...uh...

Bart

Oh my, God. Simon set me up. And all this time I thought he wanted the life of a stranger he met in the bathroom.

Bart
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The Simpsons Quotes

Larry: What you got riding on this?
Homer: My daughter.
Larry: What a gambler!

Maggie? Oh, you must be sick. Let's see, what's old Dr. Washburn prescibe? Do you have dropsy? The grippe? Scofula? The vapors? Jungle rot? Dandy fever? Poor man's gout? Housemaid's knee? Climatic poopow? The staggers? Dum-dum fever?

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