I have this kind of philosophy that I can't do anything about what happened yesterday, or what's going to happen tomorrow. But I feel in full control of what's going on now. I think worry will make you sick. I've never seen it accomplish anything. I've never seen worrying about anything change it. So I decided not to do it. If you can't do anything about it, why in the hell worry about it? Every negative thought you have releases poison into your system, and will kill you or give you cancer, or tumors or whatever else you can think of. So if you are thinking negative about anything, erase that.
Willie Nelson On Eggs, Martial Arts & Living A Life Without Worry. Southern Living. Lifestyle Network (January 2017). Retrieved on February 22, 2017.