"I refuse to prove that I exist" says God, "for proof denies
faith, and without faith, I am nothing."
"Oh," says man, "but the Babel Fish is a dead give-away, isn't
it? It proves You exist, and so therefore You don't. Q.E.D."
"Oh, I hadn't thought of that." says God, who promptly vanishes
in a puff of logic.
[Douglas Adams, "Hitchhiker's Guide to the Galaxy"]