These are words that keep me armed in the battlefield. Some i learned from my experience, and some are passed on to me by the people around me.
Life is unfair. Life is cruel. If these helped me then it will help you too.
It could literally mean "people with empty brains talks a lot". i think we should apply this if we are in an argument. Let them do all the talking coz it will come to a point that their brains won't catch up with their mouth. Or, if someone is bashing you, just let him. Just always remember to win through your actions and never through arguments.