I suspect it's been used in many places - we need to summon that quote investigator! - but I did make a note of this when I read Surface Detail by Iain M. Banks

I suspect it's been used in many places - we need to summon that quote investigator! - but I did make a note of this when I read Surface Detail by Iain M. Banks: "All you ever were was a little piece of the universe, thinking to itself."