When you revolutionize education, you're taking the very mechanism of how people be smarter and do new things, and you're priming the pump for so many incredible things.

Often you just have to rely on your intuition.

Before you were born, your parents weren't as boring as they are now. They got that way from paying your bills, cleaning your clothes and listening to you talk about how cool you thought you were. So before you save the rain forest from the parasites of your parent's generation, try delousing the closet in your own room.

We will never make a 32-bit operating system.

At Microsoft there are lots of brilliant ideas but the image is that they all come from the top - I'm afraid that's not quite right.

Apple has always leveraged technologies that the PC industry has driven to critical mass - the bus structures, the graphics cards, the peripherals, the connection networks, things like that - so they're kind of in the PC ecosystem and kind of not.

Sometimes we do get taken by surprise. For example, when the Internet came along, we had it as a fifth or sixth priority.