Why be moral? Why be healthy? It feels good. There is this natural tendancy in many human beings depending on how they were raised (and genetically i suppose too) of the pleasure to please, and the capacity for empathy.
Empirically, i see another suffering in despair, i feel empathy, I've been there. So I help them out because it will help me feel good then too! Is that selfish? Well, i just made 2 people happy, myself and another. And later on, that person will reward me back (in theory haha!)
This is the best reasoning i can come up with. Anyone want to chime in?
Albert Camus, in The Myth of Sisyphus, has a lot to speak of about this. Basically there is no compelling reason to be good, evil or indifferent. A person can do and be whatever they feel, whether it fulfills them or not. There is no reckoning, bar the immediate world of our own face in the mirror.
This debate has gotten a little of track, methinks. The fundamental issue at stake is that (some) religious folk think that their faith is above the created world, beyond criticism and certainly cannot be subjected to scientific rigour. And not only are they offended that others might think that their faith is not universally correct and accepted, they think it is perfectly acceptable to kill anyone who dares to challenge their god-given wisdom.
I would hope that we all would agree that, for our society to survive, all members must be tolerant of others and not wish to extinguish their rights to believe whatever they want.
This doesn't mean that belief is immune from criticism.