I was reading the qoutes section on Simon's character page and one of them was from as recently as Addicted. In my opinion, there's quite a few memorable quotes in a lot of the episodes and especially the movies that could be added to their pages. Maybe 3 or so per page for episodes but probably a few more for movies.
For example: (for Wacky Wednesday) Alvin: "Get out of my body!"
or: (for Robomunk ) Eleanor: "Dr. Simonize, either you create a robot that can do the job, or you'll be out of a job."