I've never actually read Twain. But I know the quote. If god doesn't live up to basic standards of human decency, screw him anyway.

Then again, to be fair, I know a bunch of believer-type people who manage to reconcile holy writings, god, and human decency. Though I've never managed to figure out how (some) people manage to believe in biblical inerrancy, or the like. I mean, have none of these people ever tried to translate anything?