“If it is not right, do not do it; if it is not true, do not say it”

I think that this quote means that when you know something is not right to do then you are not suppose to do it because then later you will get consequences. You can get in trouble for doing something that is not right. You have to choose the right and not do something your not suppose to. The second part of the quote i think it means dont go around and saying things that are not true. Don't make up things about people and tell everyone. An example is that if someone tells you a rumor of some else don't go around telling others because you don't know it's true unless you heard from that person.