Gary, you are half way to being a believer. Jesus said "Love one another" which is what you are doing now by following the Golden Rule. He also said "Love God." It's a simple step. You may think it an intellectual sell-out, but faith is not an intellectual process by its very nature. Yet you have faith now, just not in God, but in other things that you cannot prove either. How is that any more intellectually sound? Taking that step of faith in God will allow you to know things that a lack of faith in God prevents you from knowing now, things that will confirm your faith in a very personal way (which I am certain agnosticism has never done for you). In my experience, it is the best way to live, though not the easiest. I have no doubts that it is especially the best way to die, when that time comes, and we never know when that may be. Think about it, and no need to let me know what you decide. The offer stands until you take your last breath, from what I hear, but sooner is better.