Design is a funny word. Some people think design means how it looks. But of course, if you dig deeper, it's really how it works. The design of the Mac wasn't what it looked like, although that was part of it. Primarily, it was how it worked.

Some people think that anti-Semitism didn’t really exist in Germany until 1933. I certainly don’t want to take anything away from Hitler’s guilt, but the anti-Semitism I grew up with predated Hitler. We were called names. We had stones thrown at us. And, yes, this created real sorrow. We defended ourselves as well as we could. Funny thing, the common name we were called was Isaac—the way Muslims are called Ali or Mohammed. They’d call out, Isaac, go back to Palestine, leave our home, go to your place. They threw stones at us and shouted, Go to Palestine. Then in Palestine we were told to leave Palestine—history juxtaposed can be very ironic.

Some writers claim to extrude a book at an even rate like toothpaste from a tube, or to build a story like a wall, so many feet per day. They sit at their desk and knock off their word quota, then frisk into their leisured evening, preening themselves. This is so alien to me that it might be another trade entirely.

People don’t have the slightest idea about how they do reasoning, and intuition is a polite word for guessing. And some people think that there’s some special kind of intuition which gives you the right answer in a magical way.

Well, yes, no, I certainly visualise … it was really … I had to have a very good idea of the geometry – that was crucial. Spacetime geometry so it's not three dimensions, you have to think of the whole four dimensional spacetime, and I get sort of used to thinking about four dimensions and using various tricks to get the picture properly. I do most of my thinking in visual terms, and I'm a very visual thinker rather than writing down equations.