“I’m not sure how old I was when I first tried looking in the mirror and telling myself, with a shiver of pride and a warning prickle of something like fear, ‘I am the most powerful person in the world.’ In a way, it was true. My hands and mind could do things no one else’s could, but I was too young then to understand that some power—the kind that really matters—comes from other people. And what good is being faster, or stronger, or smarter than everyone else when it leaves you all alone?”