"Then there are those who really do believe, but take very good care to
separate their religion off in a separate part of their mind. They don't
let clashing thoughts ever literally clash. Either they do it by only
thinking about religion on Sunday, or they somehow manage to keep their
religious thoughts separate from their scientific ones. Those are the
ones I find least easy to understand. And then, of course, there are
those who just aren't very bright."
[Richard Dawkins, "A Trick of Light:
Richard Dawkins on Science and Religion"]