"You cannot do wrong and feel right. Its is impossible"
                                                                      Ezra T. Benson

What this quote means that one can not feel good by doing bad things. And what he wants us to do is to do good to feel good. But what he doesn't want to do is to do bad. Because when we do bad things we'll most likely feel bad of causing trouble and maybe even making some one else feel bad about them selves.