To be honest, I find very little redeeming value in the Bible. I think the golden rule is about as good as it gets, but similar sayings were around long before Jesus, so he shouldn't really get the credit.

"Do not do to others that which angers you when they do it to you." – Isocrates (436–338 BC)

"Never impose on others what you would not choose for yourself." – Confucius (551–479 BC)

"That which you hate to be done to you, do not do to another." - Unknown Egyptian author (664 BC – 323 BC)

"It is impossible to live a pleasant life without living wisely and well and justly (agreeing 'neither to harm nor be harmed'),] and it is impossible to live wisely and well and justly without living a pleasant life." – Epicurus (341-270 BC)

"Let not a man consent to do those things to another which, he knows, will cause sorrow." – Thiruvalluvar (3rd century BC to the 1st century BC)

"If people regarded other people's families in the same way that they regard their own, who then would incite their own family to attack that of another? For one would do for others as one would do for oneself." – Mozi (470-391 BC)

"Regard your neighbor's gain as your own gain, and your neighbor's loss as your own loss." – Laozi (570 BC)

"...it has been shown that to injure anyone is never just anywhere." – Socrates (469 – 399 BC)

"What you do not want to happen to you, do not do it yourself either. " – Sextus the Pythagorean

I think Bill & Ted actually said best out of all of them, "Be excellent to each other"