Originally posted by whodey
That is just it. We often instinctively desire to uphold the Golden Rule devoid of thinking about God in the mix. It is simply how we are "wired".
Having said that, Christianity either picked up on this well known fact and created their theology around it or Christ was right in that this is God's law we are inclined to follow. In fact, Biblically love i ...[text shortened]... in light of my own feelings about being willing to lay down my life for those I love.
The Golden Rule has emerged independently in different and distant societies, certainly at least 500 years before the Christian Era. From this you might infer that this is how we are wired (in your words). If so, I do not see that it follows that we "must come to the conclusion" this is selfish. You appear to me to throw away your own inference. If we are wired to love generously then we are not wired to love selfishly (or maybe we do both, but not purely selfishly). The Golden Rule is not an imposition against our natures - it is based on serious thinking about what is our nature. If we ask - how can we be sure to act justly, or morally towards others, the Golden Rule expresses a very simple and adequate prescription.
Altruism is not a possibility which emerges through a philosophy - it is an evident feature of social life which any philosophy must take into account. It is not even uniquely human.
Plato gets into a mess in his dialogues trying to support his premise - and that of Sophocles - that Justice (for which read morality) is necessarily in my best interests. I think he fails.
Sociobiologists who argue that altruism is ultimately selfish also have a particular attitude which can be argued against. In particular, I would argue that cooperation is part of our nature. While that may indeed have survival benefits, these benefits are intrinsic, not something we need to calculate. We are not altruistic in order to survive - we survive because we are altruistic.