When you buy a used car, you kick the tires, you look at the odometer, you open up the hood. If you do not feel yourself an expert in automobile engines, you bring a friend who is. And you do this with something as unimportant as an automobile. But on the issues of the transcendent, of ethics, of morals, of the origins of the world, of the nature of human beings, on those issues should we not insist upon at least equally skeptical scrutiny?
Carl SaganThe fact that someone says something doesn't mean it's true. Doesn't mean they're lying, but it doesn't mean it's true.
Carl SaganYou can't convince a believer of anything; for their belief is not based on evidence, it's based on a deep seated need to believe
Carl Sagan