Fav. Quotes from the movie in no particular order.
The Mayor of Who-ville: "I have 96 daughters and 1 son.
Horton: "[laughing] Whoa! Busy guy. "
Horton: "Vlad? Vlad, Vlad... I know two Vlads. There's the bad Vlad... And then there's bunny Vlad, the one that makes cookies!"
Morton: "...Yeah, Horton, she's sending you a bunny with cookies. I think it's safe to say it's the bad Vlad."
Horton: "I meant what I said and I said what I meant. An elephant's faithful one hundred percent. "
Narrator: "[epilogue] And so, all ended well for both Horton and Who's, and for all in the jungle, even kangaroos. So let that be a lesson to one and to all; a person is a person, no matter how small. "