Norcon said:Its basic doctrine is live life to the full and don't give a damn about your neighbour. Its a selfish belief for a selfish people.
No it isn't! That would be anarchy, or maybe nihilism.
It's perfectly possible to construct a workable set of rules from scratch. The fundamental postulate (a fancy name for a leap of faith) that everybody is just as important as everybody else will get you a long way. An atheist on a religion-based version of Question Time put it thus:
"You (insert religion here) pick your morals off a supermarket shelf. We have to work ours out."