As an atheist, I’ve long preached (ahem) that we don’t need a magic book or special creed to know how to behave like decent human beings, but Penn Jillette came up with some good rules of thumb. e.g.
1. The highest ideals are human intelligence, creativity and love. Respect these above all.
3. Say what you mean, even when talking to yourself. (What used to be an oath to (G)od is now quite simply respecting yourself.)
4. Put aside some time to rest and think. (If you’re religious, that might be the Sabbath; if you’re a Vegas magician, that’ll be the day with the lowest grosses.)
6. Respect and protect all human life. (Many believe that “Thou shalt not kill” only refers to people in the same tribe. I say it’s all human life