How has a failure, or apparent failure, set you up for later success? Do you have a favourite failure?

I would try to write my war story, whether it was interesting or not, and try to make something out of it. I describe that process a little in the beginning of Slaughterhouse Five; I saw it as starring John Wayne and Frank Sinatra. Finally, a girl called Mary O’Hare, the wife of a friend of mine who’d been there with me, said, “You were just children then. It’s not fair to pretend that you were men like Wayne and Sinatra, and it’s not fair to future generations, because you’re going to make war look good.” That was a very important clue to me.

So why do I talk about the benefits of failure? Simply because failure meant a stripping away of the inessential. I stopped pretending to myself that I was anything other than what I was, and began to direct all my energy into finishing the only work that mattered to me. Had I really succeeded at anything else, I might never have found the determination to succeed in the one arena I believed I truly belonged. I was set free, because my greatest fear had been realised, and I was still alive, and I still had a daughter whom I adored, and I had an old typewriter and a big idea. And so rock bottom became the solid foundation on which I rebuilt my life.

When you’re working and you make mistakes, particularly when you’re young, you make discoveries because you do things that are inappropriate and wrongheaded, but within the wrongheadedness you find an unexpected way to go. These things are truly the breakthroughs.

But after one year of medical school I fled. I realized I would be a very unhappy doctor and I really did not want to be responsible for the inadvertent death of my patients. Leaving medical school was a very unusual decision, especially in Nigeria where it is very difficult to get into medical school. Later, people told me that it had been very courageous of me, but I did not feel courageous at all. What I felt then was not courage but a desire to make an effort. To try.

I have never made any money from my films but I have won prizes and recognition. I have been on the margins forever. They all came to see me receive the award - there was Tom Hanks, Steven Spielberg and Richard Gere and so on. I was imagining what they would all be worth in money terms. You see I was never bankable, I could not bring any money ever to the table. I like the friendships and, yes, the admiration but I don’t want to make a big fuss about it. I will go on working as long as I am able!