litzomania-

“How do I know," she said at last, "that you are what you seem to be?"
"You don't," Said he. "I don't know what I seem, to you.”
― Ursula K. Le Guin, The Tombs of Atuan

“She sniffed, and smiled a bit, but not too much because if there is one thing worse than someone who doesn't understand you it's someone who understands perfectly, before you've had a chance to have a good pout about not being understood.”
― Terry Pratchett, Diggers

“There's some things we can't think because we don't know the words.”
― Terry Pratchett, Truckers

“A heart's a heavy burden.”
― Diana Wynne Jones, Howl's Moving Castle