In nearly 5 years of blogging experience, I’ve run across the same fallacious arguments over and over again.reproduced elsewhere, as lengthy lists of logical fallacies. But there’s really no need for such long and detailed lists, unless you want to really nerd out on critical thinking. For casual conversation, avoiding the top four logical fallacies will suffice. I list them here for easy reference.
FALLACY: Consequence has nothing to do with the question of god’s existence. They are separate issues. Human laws plus fear of retribution deter murder. Either a deity exists or it doesn’t. Even if lack of belief in a god could be shown to result in higher murder rates, it would still have no impact on the question of existence or nonexistence of a deity.
COUNTERPOINT: Ask a believer if they became absolutely certain there was no God, if they would suddenly go on rape or murder or arson sprees? If they answer, “of course not,” then they’ve admitted that they don’t get their morality from God. If they answer “Why wouldn’t I, what would stop me?” then they’ve admitted they have no internal ethics, and their time in their religion didn’t make them a better person.