In some parts of life, like mathematics and science, yeah, I was a genius. I would top all the top scores you could ever measure it by.

My whole life had been designing computers I could never build.

When you're designing and inventing the way I did, every minute of your life is put - every neuron in your brain into trying to think about the little code and how you can maybe have one less line of code and a little bit more straightforward from the beginning to the answer. And you don't have time to think about companies and products and how would I build this. So Steve Jobs and I were a very necessary pair.

I had a TV set and a typewriter and that made me think a computer should be laid out like a typewriter with a video screen.

I really worry about everything going to the cloud.

The way I did it, every job was A+.

The people I recommend the iPhone 4S for are the ones who are already in the Mac world, because it's so compatible, and people who are just scared of computers altogether and don't want to use them. The iPhone is the least frightening thing. For that kind of person who is scared of complexity, well, here's a phone that is simple to use and does what you need it to do.