When you're doing something for yourself, or your best friend or family, you're not going to cheese out. If you don't love something, you're not going to go the extra mile, work the extra weekend, challenge the status quo as much.

Things don't have to change the world to be important.

People don't know what they want until you show it to them. That's why I never rely on marketing research. Our task is to read things that are not yet on the page.

Focus does not mean saying yes, it means saying no.

It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.

Let them know precisely what you are going to do with their data

Great engineers are a huge multiplier.