“A Promise must never be broken.”-Alexander Hamilton

What this quote is trying to say is to never ever break a promise. You should never break a promise you make to someone. It is bad to lie and not complete your promises. If you lie and don't do what you promise to do then no one will ever believe you when you tell them something. They will lose confidence in you. They will see that you're the type of person who says they'll do something and not end up doing it. Promises should always be completed. Don't say a promise if you know you will not complete them. Don't go back on your word. It is bad to lie and not complete your promises.