contemplatives in many traditions claim to experience extraordinary depths of psychological well-being while living in isolation for vast stretches o… - Sam Harris

The truth is that some people appear to be almost entirely motivated by their religious beliefs. Absent those beliefs, their behavior would make absolutely no sense; with them, it becomes perfectly understandable, even rational.

Wherever there are right and wrong answers to important questions, there will be better or worse ways to get those answers, and better or worse ways to put them to use. Take child rearing as an example: How can we keep children free from disease? How can we raise them to be happy and responsible members of society? There are undoubtedly both good and bad answers to questions of this sort, and not all belief systems and cultural practices will be equally suited to bringing the good ones to light. This is not to say that there will always be only one right answer to every question, or a single, best way to reach every specific goal. But given the inescapable specificity of our world, the range of optimal solutions to any problem will generally be quite limited. While there might not be one best food to eat, we cannot eat stones — and any culture that would make stone eating a virtue, or a religious precept, will suffer mightily for want of nourishment (and teeth). It is inevitable, therefore, that some approaches to politics, economics, science, and even spirituality and ethics will be objectively better than their competitors (by any measure of “better” we might wish to adopt), and gradations here will translate into very real differences in human happiness.

As many critics of religion have pointed out, the notion of a creator poses an immediate problem of an infinite regress. If God created the universe, what created God? To say that God, by definition, is uncreated simply begs the question. Any being capable of creating a complex world promises to be very complex himself. As the biologist Richard Dawkins has observed repeatedly, the only natural process we know of that could produce a being capable of designing things is evolution.