There's a story about going to a class of young children and asking these young kids, "Who can write an opera? A symphony? Be a high ranking leader, a politician, an astronaut, a doctor, a president?"And what happens? The whole class, they put their hands up because they don't know what can't be done. They haven't learned that yet. It's all possible. Ask the same questions of that same class five years later, 10 years later, 20 years later and what happens? The hands start going down. Why is that? Because they've been poisoned by this thing called "I can't." They think they already know what's not possible and that's the killer.I've always tried to be that little kid with his hand in the air. It really works to be that naïve, to really think you can do anything.