Bumper Sticker Wisdom

A wise bumper sticker told me today, "Say No to Negativism."  No attribution made, just a humble white paper with plain black letters, putting it simply, as bumper stickers are wont to do.  It sounds so easy.  Maybe it is, and I just make it into something difficult by over-thinking every situation and every interaction.  Perhaps the secret to serenity is to simply say "no" when you are tempted to slide down into the negativity vortex.  I can see where, if I would turn my mind off, I could be a lot more productive.  I think I'll give it a try.