A professor was talking with his neighbor the clown.
"The world is the wisest thing God has made," the professor said.
The clown disagreed. "The wisest thing God has made is a clown with his feet in the air."
"I don't understand," the professor said.
"Jokes are wisdom with its feet in the air. If you turn a joke upside down, it turns into wisdom again."

Juris Rubenis, Finding God in a Tangled World by Juris Rubenis, Paul Valliere, editor