One of my all time favorites is from Lyon Lorestriker ( Final Boss Tower of the Helephant ) " Crowds just warm my Icy Heart " I love quoting this on My wizard. LOL
Other quotes that I enjoy but can't remember who said them: " Big Spells. Boring. Come fight me quick. " "Bah, I will not hide like some child in his mother's skirts. I will face you like a bull, and let the spirits dictate who wins."
Malistaire The Undying: "I will take you apart and reassemble you as a wretched thing, to be pitied and feared by every living thing in the Spiral."
I know it creepy and yes I'm probably mixed up in the brain to like this, but you have to admit it was a real good threat out of an enemy. And I liked it. Though I haven't made it there yet, I've seen videos.