You probably know the words of a great hymn that say, "He knows if you've been bad or good, so be good for goodness' sake." Okay, so they're not from a hymn. But have you ever questioned why some of us do primarily things that are good, why others do more things that are harmful, and why we all have the tendency to do a bit of both? Today we take a look at one perspective on this issue, as we consider whether any of us do good For Goodness' Sake.