Alternative Lyric From Gilbert and Sullivan's "I Am the Very Model of a Modern Major-General"

"I can tell undoubted Raphaels from Gerard Dows and Zoffanies,
I know the croaking chorus from The Frogs of Aristophanes!
Now let's go bang each other."


An Example of How Doing a Mathematics Proof in the Air Can be Confusing

Green's Theorem on a plane on a plane.

A Joke

Two ducks are sitting in a jacuzzi.  One duck looks at the other and asks, "Hey, do you have any Chapstick?"

"Yeah, of course."