He had to laugh at her lack of knowledge. She clearly hadn't done very well in Astronomy. Still, she was talking about it and that was always nice. "Spoon? You mean Plough? Or Little Bear? One of 'ems a spoon?" Now he was confused.
"And I dunno. The Greek gods aren't real, but the stars have to be there for a reason. Magic teaches us that things have purposes, so what are the purposes of the stars? Unless something - or someone - put 'em there for us to divine from."
He never talked about this sober, ever, and he had to be in the just right mood to do it drunk. Lucky for Hannah, he was in the just right drunk mood.