I’m still astonished that somebody would offer me a job and pay me to do what I wanted to do. And to this day, that’s been the astonishment of my life, and delight of my life, and the wonder of my life, and the puzzlement that anybody would be so stupid as to be willing to do that. I hear all these success stories of people, these captains of industry, these forgers of the world, and empire builders and so on. And they talk about all the money they’ve made and become presidents and all that, and I thought, jeez, but look at me. When I was offered a chance to be head of studios I wouldn’t take it. I like to work with the tools of my trade. The tools of my trade is a lot of paper and a pencil, and that’s all it is.

Charlie and I decided long ago that in an investment lifetime it's just too hard to make hundreds of smart decisions. That judgment became ever more compelling as Berkshire's capital mushroomed and the universe of investments that could significantly affect our results shrank dramatically. Therefore, we adopted a strategy that required our being smart - and not too smart at that - only a very few times. Indeed, we'll now settle for one good idea a year. (Charlie says it's my turn.)

Any lasting relationship needs non-negotiables. We made the decision early on never to be apart for longer than two weeks: 26 years married and we’ve only broken that rule once, by 11 hours, when my wife was in Sleepy Hollow. If I ever meet [director] Tim Burton, I’ll be having words.

I notice that if you have the door to your office closed, you get more work done today and tomorrow, and you are more productive than most. But 10 years later somehow you don't know quite know what problems are worth working on; all the hard work you do is sort of tangential in importance. He who works with the door open gets all kinds of interruptions, but he also occasionally gets clues as to what the world is and what might be important.

I mean, I still work alone. Really — I work alone in my house, often in my bathrobe. When a photographer shows up, I dress up, so I have clothes on. And that's how I've always worked.

I've actually felt slightly uncomfortable at TED for the last two days, because there's a lot of vision going on, right? And I am not a visionary. I do not have a five-year plan. I'm an engineer. And I think it's really — I mean — I'm perfectly happy with all the people who are walking around and just staring at the clouds and looking at the stars and saying, “I want to go there.” But I'm looking at the ground, and I want to fix the pothole that's right in front of me before I fall in.