Matt Rosenberg pointed out on twitter that the Einstein geography quote I posted (which I'd found on a university's geography department homepage, so trusted without thinking) was debunked: ".... this quote was actually written by Duane F. Marble, Professor of Geography at Ohio State University." The rest of the story is at the link.
I'm a little disappointed. It would have been an awesome thing for Einstein to have said.
The Bortle Scale
56 minutes ago