Hmmm...this one is a hard one. I haven't really heard anything new that has struck a chord with me. Just some things I have heard before, or that I have talked about myself in the last.
Based on some recent events that some friends and family are dealing with, I think I will go with this one: We are not guaranteed tomorrow. Don't let pride, or stubbornness get in the way, because you may do or say something that you regret.....or even worse, you may not get the chance to mend those bridges that you are burning.