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

             This quote is trying to say that when you're dishonest you feel guilty and you never feel right. At the end of the day honesty is one of the most valuable aspects that we have in life, if we all lie to each other we have nothing but a bunch of dishonest people and as you know lies create problems and who wants problems? no one does. An example of this quote is when you cheat on a test and the teacher asks you if you cheated and you respond with a "no" knowing that you did you're not gonna feel good about yourself and at the end of the day you cheated on yourself and it will affect you. Another example is when  you lie to your parents about something knowing that they trust you but you choose the wrong and lie to them. In retrospect, this quote means to do good and you will feel good about yourself.