(Phineas and Ferb are sitting under the tree when suddenly an apple falls and hits them on the heads) Phineas: Haha, gravity. Hm, I wonder if there's any way around that. Candace: What are you guys doing? Phineas: Well, right now we're just thinking about defying gravity. Candace: Please, even you can't change the law of gravity. It's a universal law, like "You can't wear white after Labor Day". Phineas: An absolute law without a hope of appeal? That's despotism! Somebody oughta- Hey, that's it! I know what we're gonna do today! Hey, where's Perry? Candace: Right here. Phineas: Oh, I didn't see him there.