I found the picture you see here at Despair.com, via this post at Galley Slaves, a cool blog I forgot to keep reading when it first came out late last or early this year.
It's a rip on those framed motivational prints you sometimes see in the offices of people with no taste and/or a liking for the high art of Escher and Nagel.
Actually, I adore M.C. Escher, but I don't usually take the opportunity to share an inside joke with one of the audience.
Go check out the rest of 'em. They're full of snarky goodness.