The year of 1979 Douglas Adams wrote the first part of his trilogy in five parts(!), The Hitchhiker's Guide to the Galaxy. In the chapter six a man prooves that God does not exist by using logic. He does it like this (link to the source with more fun quotas):
"The argument goes something like this: 'I refuse to prove that I exist,' says God, 'for proof denies faith, and without faith I am nothing.'
"'But,' says Man, 'the Babel fish is a dead giveaway, isn't it? It could not have evolved by chance. It proves you exist, and so therefore, by your own arguments, you don't. QED.'
"'Oh dear,' says God, 'I hadn't thought of that,' and promptly vanishes in a puff of logic.
If he had lived now he would have said: "What did I tell you!" If you read the Chicago Tribunes article Thinking can undermine religious faith, study finds it really seems as he is correct: People that are thinking more logical and not with their guts (?) are more eager to be sceptical and then a lot of the belives disappear in a cloud of logic. Logic, isn't it?
The original article, Analytic Thinking Promotes Religiuos Disbelief was published in the Science Magasin.