I didn't see it then, but it turned out that getting fired from Apple was the best thing that could have ever happened to me. The heaviness of being successful was replaced by the lightness of being a beginner again, less sure about everything. It freed me to enter one of the most creative periods of my life.

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.

Well, I'll be honest with you. I was a theoretical physicist but my Ph.D. work was on a problem that was not particularly interesting to me at the time. And I used to subscribe to Scientific American and I found that there were all these wonderful discoveries happening in biology and I also knew that a number of physicists had gone into biology and been successful. So, I decided to switch.

No. I mean if you fail 70 percent of the time, you had a great year. You're dealing with failure seven out of ten times as a hitter.

I would say that half of it was adversity. It was people discouraging me that got me into writing. I had a partner, a business partner, who ended up cheating me, as a matter of fact.

I go back to this idea that I only discovered when I was older. I wish I had known it when I was younger, because I think I missed a lot of observations in life. That is to develop your own philosophy. I always thought philosophy was one of the most useless subjects in the world.

I thought I was clever enough to write as well as these people, and I didn't realize that there is something called originality and your own voice.

I remember one teacher in particular. I was in a school in the third grade and they were thinking of skipping me, putting me in a higher grade. But then somebody said that would be bad psychologically. So, for that entire year, because I had learned all the lessons that year — the multiplication tables, whatever the reading was — this teacher let me go off by myself and draw pictures. So I had hours and hours of time where I was just left to my own devices, drawing pictures. And she would encourage me. That was a wonderful period in my life. I mean, I didn’t become an artist, but somebody let me do something I loved. What a luxury, to do something you love to do. I would still like to have that luxury, to be able to just sit and draw for hours and hours and hours. In a way, that’s what I do as a writer. I just sit by myself, being in my own mind, not being directed at what I should be doing moment-by-moment, not having a clear plan set out by anybody and just letting imagination enter into the blank page. So in that respect, I can thank Miss Grudoff of the third grade for allowing me that.