"A man can’t know where he is on the Earth except in relation to the moon or a star. Astronomy comes first; land maps follow because of it. Just the opposite of what you’d expect. If you think about it long enough, it will turn your brain inside-out. A here exists only in relation to a there, not the other way around. There’s this only because there’s that; if we don’t look up, we’ll never know what’s down. Think of it, boy. We find ourselves only by looking to what we’re not. You can’t put your feet on the ground until you’ve touched the sky."
– Paul Auster, American author known for works blending absurdism, existentialism, crime fiction and the search for identity and personal meaning, Effing in Moon Palace, Viking Press, 1989 (Thank you, amiquote)