French: "Sir, (a+b^n)/n=x, therefore
God exists:
reply!" What
Leonhard Euler said to
Denis Diderot when he heard that Diderot was an
atheist but not a
mathematician. The funny part is that Diderot was so ashamed of his ignorance that he
fled the country. One
moral of this story is that, if you're going to be a decent atheist, you ought to be a decent mathematician.
See Catherine the Great, non sequitur, proof by intimidation.