Right, I went back as a mature student to art school, and I was advised to use my train journeys and commutes, or to just take time in the morning before work to sit down and write something. That was, I think, the beginnings of understanding what it meant to have a writing practice.

Then there was Von Neumann, the great mathemati-cian. We used to go for walks on Sunday. We'd walk in the canyons, and we'd often walk with Bethe, and Von Neumann, and Bacher. It was a great pleasure. And Von Neumann gave me an interesting idea; that you don't have to be responsible for the world that you're in.

Run toward the hardest problems. At the time, I didn’t fully understand what that meant.  But over time, I realized this was the best advice I ever received. Hard problems teach you what you're capable of.  Fast forward a bit … 12 years ago, I got a chance to put that lesson to the test. I had the opportunity to become CEO of AMD. AMD had enormous potential, but the company had been through some tough years. Some of my mentors thought taking the job was risky. But for me, this was my dream job. This was what I’d been training for all those years. The opportunity to work at the bleeding edge of technology on problems that really mattered. The first thing we had to figure out was what we wante

My dad always told me and my two brothers, “Don’t ever get too proud or too old to say that you love me and to say that you love each other.” “Love” is a pretty commonly used word in our family. When I talk to my brothers now on the phone midday, we always end the conversation saying, “I love you. I love you, bro.”