The problem I want to talk to you about tonight is the problem of belief. What does it mean to believe? We use this word all the time, and I think behind it lurk some really extraordinary taboos and confusions. What I want to argue tonight is that how we talk about belief- how we fail to criticize or criticize the beliefs of others, has more importance to us personally, more consequence to us personally and to civilization than perhaps anything else that is in our power to influence.

What I'm asking you to entertain is that there is nothing we need to believe on insufficient evidence in order to have deeply ethical and spiritual lives.

To say that I would have done otherwise had I wanted to is simply to say that I would have lived in a different universe had I been in a different universe.

The deity who stalked the deserts of the Middle East millennia ago-and who seems to have abandoned them to bloodshed in his name ever since-is no one to consult on questions of ethics.

What would our world be like if we ceased to worry about 'right' and 'wrong,' or 'good' and 'evil,' and simply acted so as to maximize well-being, our own and that of others? Would we lose anything important?

Religious faith is the only area of discourse where immunity through conversation is considered noble . It's the only area of our lives where someone can win points for saying, "There's nothing that you can do to change my mind and I'm taking no state of the world ultimately into account in believing what I believe. There's nothing to change about the world that would cause me to revise my beliefs.

It is rather more noble to help people purely out of concern for their suffering than it is to help them because you think the Creator of the Universe wants you to do it, or will reward you for doing it, or will punish you for not doing it. The problem with this linkage between religion and morality is that it gives people bad reasons to help other human beings when good reasons are available.