#passing for human

Sooner or later it’d get to you. Death was fascinated by humans, and study was never a one-way thing. A man might spend his life peering at the private life of elementary particles and then find he either knew who he was or where he was, but not both. Death had picked up…humanity. Not the real thing, but something that might pass for it until you examined it closely.

Terry Pratchett, Hogfather