" In the beginning, it takes focus, effort, and more energy in your brain, but after you make the swing or say hello enough times, it becomes effortless. Thus, to rewire your brain you’ll have to stay with the new behavior long enough to make it become fairly automatic. In time, practice will make it effortless. Your brain won’t have to work as hard once you reach this level. "

― , Rewire Your Brain: Think Your Way to a Better Life