"It may make a difference to all eternity whether we do right or wrong today."
This quote means that the choices we make today will affect us in the future. I read a story once about a man who was on his way to work. There was a man in a big rush behind him who shoved him and told him the 'F' word. When the man got to his offices he started interviewing people for a new position at his office. The first person to walk in for an interview was the same man he had seen earlier in the day. He interviewed the man and he knew he wasn't going to hire him. If this man had politely asked the interview to get out of his way instead of being rude he probably would have been hired.