I remember reading The Making of a Surgeon when I was in probably about the sixth or seventh grade. And that was a book that kind of got me focused, I think, on the career path. And I remember, one thing in there I still remember is that you can always tell you’ve really arrived as a surgeon when the nurses in the hospital ask you to be their physician.

The first biography I read — I think the first scientific biography — was Madame Curie . And my mother, who was a surgeon, worked at the Marie Curie Hospital. She’d met Marie Curie, who was one of her great heroines. And reading the book, I think, was the first portrait of a scientist and the romance of a scientific life.

Oh, yeah. I spent a lot of time in the public library. When we moved I was seven years old, and I got a library card, and I used to go to the library all the time, and I loved all the, you know, standard children’s novels. I love those Biblical epics, but my favorite books when I was a child were books about Native Americans: tribal leaders; Osceola, who brought the alphabet to the Seminoles; Chief Joseph of the Nez Perce; and the standard ones that were heroes in all the Western movies. But I was fascinated. The Cherokee had moved across my state on the Trail of Tears when they were expelled from the East and then moved over to the reservation lands. I became fascinated with what happened to the Native Americans and the struggle that many were undertaking then — and they still try to preserve their traditions and their way of life, their ties to the land, and still provide education and participate in the life of the country. I was interested in it then. I’m interested in it now. The Native Americans in our country who don’t have casinos on their tribal lands still have the lowest per capita income of any ethnic group in America. It’s a disgrace, and when I became president I was the first president since James Monroe in the 1820s to invite all the tribal leaders to the White House, and it was fascinating. Some of the ones who came from lands that had casinos flew in on their private jets. A lot of the others had to pass the hat in the reservation to raise enough money to pay for a plane ticket, and they all came, and we began to meet, and I learned a lot from them.

I believe that I had something called epigenetic imprinting, which I actually read about in a book called The Female Brain by Louann Brizendine. Not to self-promote too much, but I loved it so much I wrote a movie with a brilliant comedian named Neil Brennan and made the move this year. That’s how profoundly it changed my life, because I believe that the more we know about our neural brain wiring, the more freedom we have and the more patience we have with ourselves.