Marge: Honey, I know you feel a little silly saying the same four words over and over,

Marge: Honey, I know you feel a little silly saying the same four words
over and over, but you shouldn't. You're making people happy,
and that's a very hard thing to do.
Bart: You're right, Mom. I shouldn't let this bother me. I'm in
television now. It's my job to be repetitive. My job. My job.
Repetitiveness is my job. I am going to go out there tonight and
give the _best_ performance of my life.
Marge: The _best_ performance of your life?
Bart: The _best_ performance of my life!
-- What was that again?, "Bart Gets Famous"