Some years ago while on a family car trip, my youngest daughter piped up from the back seat: “There’s always a duck!”
“Huh?” we replied. “Where did that come from?”
“I don’t know,” she said. “But it’s true. There’s always a duck.”
She was four at the time, and prone to odd-ball exclamations. I’ve forgotten most of the bizarre things she said at that age. But that one stuck.
Perhaps that’s because we’ve noticed that it’s true. Wherever you go, you can usually find a duck. That non sequitur about the ubiquity of water fowl has become a philosophical statement about the way the world works. It’s comforting. Wherever you go, no matter how strange a place it is, you’ll find something familiar.
On every geographical map of sufficient detail, there’s a Buckhorn.
This appears to be a restatement of Lubarsky’s Law of Cybernetic Entomology: http://catb.org/jargon/html/L/Lubarskys-Law-of-Cybernetic-Entomology.html