If you want to do something different, you’re going to come up against a lot of naysayers.

In order to fix it, you need a passionate anger about something that doesn't work well.

Hire inexperience. This year we plan to hire 200 engineers - half of whom are recent grads. Young people are not burdened by years of experience. They haven't learned - or been told - what is right or wrong. With engineering, there is no tried and tested path. You try, and fail, and fix, and fail again.

If you really want to improve technology, if you want things to work better and be better, you've got to protect the person who spends a lot of effort, money, and time developing that new technology.

[In my home workshop,] generally I'm mending things, which is interesting because you learn a lot about why they broke.

Don't listen to experts.

We’re taught to do things the right way. But if you want to discover something that other people haven’t, you need to do things the wrong way. Initiate a failure by doing something that’s very silly, unthinkable, naughty, dangerous. Watching why that fails can take you on a completely different path. It’s exciting, actually. To me, solving problems is a bit like a drug. You’re on it, and you can’t get off.