Wicked: The Life and Times of the Wicked Witch of the West
"But is life worth living in the wrong form?" said Elphaba.
"The interior doesn't change," she answered, "except by self-involvement. Of which be not afraid, and also beware." (188.8.131.52-5)
"You are a half-breed, a new breed, you are a grafted limb, you are a dangerous anomaly. Always you were drawn to the composite creatures, the broken and reassembled, for that is what you are." (5.8.28)