I was creating commitment devices of my own long before I knew what they were. So when I was a starving post-doc at Columbia University, I was deep in a publish-or-perish phase of my career. I had to write five pages a day towards papers, or I would have to give up five dollars.

My history is pretty different from the history of most professors. I was a high school dropout. I dropped out and became a science fiction writer.

Psychology, unlike chemistry, unlike algebra, unlike literature, is an owner's manual for your own mind. It's a guide to life. What could be more important than grounding young people in the scientific information that they need to live happy, healthy, productive lives? To have good relationships?

I think self-discipline is something, it's like a muscle. The more you exercise it, the stronger it gets.