The one definition actually in all three monotheistic faiths, common to any rational man, even with no faith – of good and evil – hence should be our universal definition, for we all agree to it “Don’t do to others that which you don’t want them to do to you! – everything else is a detail of this all-encompassing general principle!” and conversely, goodness would be, to “do to others that which you want them to do to you” (bearing in mind, that both refrains must simultaneously be enacted, in other words, not only should you do to others as you want them to do onto you, but you should do it in a mechanism that doesn’t transgress “don’t do onto others as you wouldn’t want them to do onto you,” in other words, Love With Respect!)