Okay, since this is gonna take forever, I'm now going to rename 10 episodes per post. I left off on The King of Omashu, so let's continue...
Imprisoned: "Shouldn't we run away from huge booms, not toward them?" -Sokka
Winter Solstice Part One: The Spirit World: "Yeah... we're all gonna get eaten by a spirit monster." -Sokka
Winter Solstice Part Two: Avatar Roku: " Did the definition of 'genius' change in the last hundred years?" -Aang
The Waterbending Scroll: "Stealing is wrong... unless it's from pirates." -Katara
Jet: "Why don't you ask Sokka's instincts? They seem to know everything." -Katara
The Great Divide: "Would you rather be hungry, or dead?" -Canyon Guide
The Storm: "You will learn respect, and suffering will be your teacher!" -Ozai (I found a T-shirt that said this once, and imagined how someone who doesn't watch Avatar would react to it...)
The Blue Spirit: "You know what I love about Appa the most? His sense of humor." -Sokka
The Fortune Teller: " I DON'T CARE WHAT AUNT WU TOLD YOU! YOU HAVE TO TAKE A BATH SOMETIME!!" -Sokka
Bato of the Water Tribe: "Well, if it isn't my new friends, Angry Boy and Uncle Lazy." -June
Feel free to give me your suggestions on your favorite quotes.