“I like Saturdays. They are my best thinking days. It is my day to try to find that one special thought that turns into an idea that I remember forever and becomes a part of who I am, like a freckle or a finger or an ear. Even before I open my eyes I take a deep breath and try to picture something, anything, as if my brain were a keyhole where I can spy on my future. So each Saturday morning I try to find a little piece of a thought, and then I keep turning it over in my mind until it turns into a complete idea and at the end of the day when I'm lying in bed I put the whole thought into a little room in my head so I can remember it.”