It is a terrible practice to prejudge anyone, be they ogres or orphans or dragons or nosy neighbors or assistant principals or people with unusual manners. It is important, always, to treat everyone with compassion and respect.”
-- Narrator (chapter 2)

Importance: The Stone does not like the dragon who is disguised as the Mayor because he is manipulative and cruel. This statement makes the point that not all dragons are like that. There are several examples in the story of characters who judge based on their idea of what to expect.

I will share whatever I can. After all, the more you give, the more you have. It is the only true thing I know.”
-- The Ogress (chapter 5)

Importance: This is the Ogress's mantra, repeated often throughout the story. Her generosity is a central part of her character, though the villagers do not realize this for a long time.

But the reason for the kindness is never as...
-- Myron (chapter 14)