Markus Zusak said this quote

Why do they have windows? Is it to let a glimpse of the world in? Or for us to see out? Our own place is small perhaps, but when your old man is eaten up by his own shadow, you realize maybe that in every house, something so savage and sad and brilliant is standing up, without the world even seeing it. Maybe that's what these pages of words are about. Bringing the world to the window.