“Imagine a world in which generations of human beings come to believe thatcertain films were made by God or that specific software was coded by him.Imagine a future in which millions of our descendants murder each otherover rival interpretations of Star Wars or Windows 98. Could anything --anything -- be more ridiculous? And yet, this would be no more ridiculousthan the world we are living in. ”

“If our well-being depends upon the interaction between events in our brains and events in the world, and there are better and worse ways to secure it, then some cultures will tend to produce lives that are more worth living than others; some political persuasions will be more enlightened than others; and some world views will be mistaken in ways that cause needless human misery.”

“In adaptive terms, belief has been extraordinarily useful. It is, after all, by believing various propositions about the world that we predict events and consider the likely consequences of our actions. Beliefs are principles of action: whatever they may be at the level of the brain, they are processes by which our understanding (and misunderstanding) of the world is represented and made available to guide our behavior.”

“Imagine what it would be like for our descendants to experience the fall of civilization. Imagine failures of reasonableness so total that our largest bombs finally fall upon our largest cities in defense of our religious differences. What would it be like for the unlucky survivors of such a holocaust to look back upon the hurtling career of human stupidity that led them over the precipice? A view from the end of the world would surely find that the six billion of us currently alive did much to pave the way to the Apocalypse.”

“A kernel of truth lurks at the heart of religion, because spiritual experience, ethical behavior, and strong communities are essential for human happiness. And yet our religious traditions are intellectually defunct and politically ruinous. While spiritual experience is clearly a natural propensity of the human mind, we need not believe anything on insufficient evidence to actualize it.”

“Believing a given proposition is a matter of believing that it faithfully represents some state of the world, and this fact yields some immediate insights into the standards by which our beliefs should function. In particular, it reveals why we cannot help but value evidence and demand that propositions about the world logically cohere.”

“According to the most common interpretation of biblical prophecy, Jesus will return only after things have gone horribly awry. Imagine the consequences if any significant component of the U.S. government believed that the world was about to end and that its ending would be glorious. The fact that nearly half of the American population apparently believes this should be considered a moral and intellectual emergency.”