One reader of an early draft of this chapter complained at this point, saying that by treating the hypothesis of God as just one more scientific hypothesis, to be evaluated by the standards of science in particular and rational thought in general, Dawkins and I are ignoring the very widespread claim by believers in God that their faith is quite beyond reason, not a matter to which such mundane methods of testing applies. It is not just unsympathetic, he claimed, but strictly unwarranted for me simply to assume that the scientific method continues to apply with full force in this domain of truth.Very well, let's consider the objection. I doubt that the defender of religion will find it attractive, once we explore it carefully.The philosopher Ronaldo de Souza once memorably described philosophical theology as "intellectual tennis without a net," and I readily allow that I have indeed been assuming without comment or question up to now that the net of rational judgement was up. But we can lower it if you really want to.It's your serve.Whatever you serve, suppose I return service rudely as follows: "What you say implies that God is a ham sandwich wrapped in tin foil. That's not much of a God to worship!". If you then volley back, demanding to know how I can logically justify my claim that your serve has such a preposterous implication, I will reply: "oh, do you want the net up for my returns, but not for your serves?Either way the net stays up, or it stays down. If the net is down there are no rules and anybody can say anything, a mug's game if there ever was one. I have been giving you the benefit of the assumption that you would not waste your own time or mine by playing with the net down.
For a considerable portion of humanity today, it is possible and indeed likely that one's neighbor, one's colleague, or one's employer will have a different mother tongue, eat different food, and follow a different religion than oneself. It is a matter of great urgency, therefore, that we find ways to cooperate with one another in a spirit of mutual acceptance and respect.In such a world, I feel, it is vital for us to find genuinely sustainable and universal approach to ethics, inner values, and personal integrity-an approach that can transcend religious, cultural, and racial differences and appeal to people at a sustainable, universal approach is what I call the project of secular ethics.All religions, therefore, to some extent, ground the cultivation of inner values and ethical awareness in some kind of metaphysical (that is, not empirically demonstrable) understanding of the world and of life after death. And just as the doctrine of divine judgment underlies ethical teachings in many theistic religions, so too does the doctrine of karma and future lives in non-theistic religions.As I see it, spirituality has two dimensions. The first dimension, that of basic spiritual well-being-by which I mean inner mental and emotional strength and balance-does not depend on religion but comes from our innate human nature as beings with a natural disposition toward compassion, kindness, and caring for others. The second dimension is what may be considered religion-based spirituality, which is acquired from our upbringing and culture and is tied to particular beliefs and practices. The difference between the two is something like the difference between water and tea.On this understanding, ethics consists less of rules to be obeyed than of principles for inner self-regulation to promote those aspects of our nature which we recognize as conducive to our own well-being and that of others.It is by moving beyond narrow self-interest that we find meaning, purpose, and satisfaction in life.