Times consistently change yet somehow as we get on with the age process we are brought back in time by thought and by watching patterns in the lives of our loved ones. 
The saying "what comes around goes around"  is oh so true.  As we do unto others,  that will be done unto us it is said.  I truly believe that if we don't do right we are getting a big kick in the keester either here or in our after life. Yes, words may fly a thousand miles and while they do not have wings they are some kind of powerful my friend.  Think about a time when you said something which may have hurt a friend, a parent or a sibling and you just didn't give it a second thought.  Do you think those words you spoke at them were forgotten?  They may have been but I doubt it because cruel intentions leave an everlasting effect and although forgiveness may be had forgetting is another story indeed.