By now, I certainly hope you have figured out how much I love quotes and sayings. They sometimes may seem contrived or even pithy, but even if they are, we like them, memorize them, and most importantly, remember them. Therefore, I offer for your initial amusement, followed by a knowing acceptance, finished with a nod of gratitude the following:
Yesterday is history and tomorrow is a mystery.
Before you accuse me of being Captain Obvious, allow me to expound slightly. Why do we (which most definitely includes I) spend so much time worrying, wishing, and wasting time thinking about the past? For that matter, ditto for the future. I have some ideas which I hope you will consider and then follow me in directing your focus where it belongs.