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

We can either have a twenty-first-century conversation about morality and the human well-being - a conversation in which we avail ourselves of all scientific insights and philosophical arguments that have accumulated in the last two thousand years of human discourse - or we can confine ourselves to a first-century conversation as it is preserved in the Bible.

What we do in every other area of our lives (other than religion), is, rather than respect somebody's beliefs, we evaluate their reasons.

Any conception of human well-being you could plausibly have, the Taliban patently fails to maximize it.

Atheism is just a way of clearing the space for better conversations.

Human well-being is not a random phenomenon. It depends on many factors - ranging from genetics and neurobiology to sociology and economics. But, clearly, there are scientific truths to be known about how we can flourish in this world. Wherever we can have an impact on the well-being of others, questions of morality apply.

Science has long been in the value business. Despite a widespread belief to the contrary, scientific validity is not the result of scientists abstaining from making value judgments; rather, scientific validity is the result of scientists making their best efforts to value principles of reasoning that link their beliefs to reality, through reliable chains of evidence and argument.