"But Eastern religions have excellent philosophical systems underlying them and those systems are not forgotten or denied. You don't get anything like that with Christianity."

Pardon my being simplistic, but the Ten Commandments aren't a bad set of guidelines. I object very strongly to them being posted in the courtroom and shoved down the throats of all of the rest of us, but in and of themselves, they'll save you a lot of trouble. Of course, they're suggestions that are not unique to Christianity and ones that plenty of atheists follow, anyway, without all the stone tablet business.