"If it is not right, do not do it; if it is not true, do not say it."
Marcus Aurelius
A example of this is thinking of stealing and not doing it.If you want to say you are smart but you know you are not. Another is cheating on a test and telling the teacher that you didn't. If you know its wrong then don't do is and if you try to say some thing that is not true then don't say it. spreading lies is a bad thing.