- Lizzie McGuire: [about Miranda's jacket] It's leather. Leather is cow, cow is meat! I don't eat meat.
- Miranda Sanchez: Fine! So don't eat my jacket.
- Miranda Sanchez: Lizzie, you're totally overreacting!
- Lizzie McGuire: I'm overreacting? Tell me that I'm overreacting when the garbage builds up so high that it blocks out all the sunlight, and we freeze.
- Miranda Sanchez: Yeah? Well, at least I'll have my jacket to keep me warm!
- David 'Gordo' Gordon: [wakes up after Lizzie slams the classroom door] I'm not sleeping, I'm just resting my eyes!
- [Gordo dresses up as Elvis before the race]
- Larry Tudgeman: Who are you?
- David 'Gordo' Gordon: The King, baby!
- Lizzie McGuire: I'm really sorry you didn't win the race, Gordo.
- David 'Gordo' Gordon: Yeah, me too. If I hadn't stayed up all night creating my aerodynamic collar, I wouldn't have fallen asleep. I might've won. There's probably a lesson in there somewhere, but I'm just too tired to find it.
- Lizzie McGuire: [about Matt] Mom, tell the geek patrol that if he touches my dessert, his citation-writing days are over.
- Matt: You're a troublemaker, Lizzie. I'll be watching you. I've seen your kind all my life.
- Lizzie McGuire: Of course you have, Officer Wacko. I live here.
- Lizzie McGuire: Well, if my parents' generation wasn't so interested in bellbottoms and roller disco, the planet would be in a lot better shape.
- Miranda Sanchez: Okay, Lizzie. I'm really worried about you.
- Lizzie McGuire: Don't be worried about me, Miranda. Be worried about the world! Be worried about the environment and the homeless people, and... and the animals, and the rainforest, and the ozone layer!
- Miranda Sanchez: Well, the rainforest isn't going to hang out with me and rent movies on Friday nights.