Saw this on an atheist blog - I think it's supposed to be funny.
"I'm still an atheist, thank God."-- Luis Bunuel
There might be a lot of truth in that. Like Pharaoh, Luis may have been raised up for just such a purpose. Romans 9:22,23.
He is probably not alone. How many atheists have said, "I couldn't become a Christian even if I wanted to?
As to the famous atheist quotes? Like the saying goes, You can laugh your way into hell but you can't laugh your way out.