I Think What Goes Around Comes Around
You can go to Mass eighty years and not get the point but as important as Mass is, so is the truth in the fact that you must have the right understanding of everything you do, say or think. Every thing has impact. Just because you don't say something to a person doesn't mean your thoughts aren't having an impact. It is a crucial thing to understand, and I've read it somewhere before, what you do in life resonates in eternity.