Expect the best at all times. Never think of the worst. Drop it out of your thought, relegate it. Let there be no thought in your mind that the worst will happen. Avoid entertaining the concept of the worst, for whatever you take into your mind can grow there. Therefore, take the best into your mind and only that. Nurture it, concentrate on it, emphasize it, visualize it, prayerize it, surround it with faith. Make it your obsession. Expect the best, and spiritually creative mind power aided by God power produce the best.
Norman Vincent Peale, The Power of Positive Thinking