Lisa's enormous intelligence and moral authority place her in a unique position in the Simpson family - and, for that matter, Springfield at large.
Each parents' night at Springfield Elementary, Homer and Marge fight to meet with Lisa's teachers rather than Bart's on the theory that being offered a tin of cookies as thanks is less 'upsetting' and 'costly' than reviewing quarterly property damage assessments for melted playground equipment.
A devoted vegetarian, this second grader also plays the saxophone with the virtuosity, if not the stubble, of Springfield's late blues great, Bleeding Gums Murphy.
For the record, Lisa says she watches TV only for 'The MacNeil- Lehrer Report' - particularly since it expanded to one hour - and any Masterpiece Theatre serialization of wordy British novels. In truth, however, she is always willing to interrupt a piercing MacNeil-Lehrer roundtable whenever her beloved 'Itchy & Scratchy' cartoons are on TV. Her deep love for cartoon characters proves that, no matter how precocious she may be, Lisa is still a Simpson.