Tails' 'Reason You Suck' speech(es)
Sonic: Hang on, buddy. Where's all this coming from?
Tails: I finally understand your attitude, Sonic. You're so cool and hip after all. [with an angry look] It's just too bad you had to act like you're better than the rest of society, especially with all that potential slipping away from you. All you ever do is eat, sleep, moan and go to the bathroom like a baby would do. Which you, sir, are NOT! And besides, it's OK to be a dimwit if you have amazing powers.
Knuckles: [happily] That's what I've been saying!
Tails: [to Knuckles] Can it, pea brain! Oh wait, you don't have a brain. At all. In fact, 'muscle' is the only word you know and don't need a dictionary for. You fail to understand so many words, even the simplest ones, that you might as well bring a dictionary with you to look those words up. Oh, I forgot. You can't read!
Amy: [astounded] Tails! That wasn't very nice.
Tails: [to Amy] You're not very nice! You think you know everything and what everyone wants