The key to success is failure… Success is made of 99 percent failure.

Everybody recognizes that if you can make very efficient electric motors, you can make a quantum leap forward.

Don't listen to experts.

Exactly 5,126 attempts to make the first bagless vacuum cleaner were failures-some catastrophic disappointments, some minor defects. It took 15 years. Prototype 5,127 was the success ... Failure is painful, but it spurs on improvement like nothing else.

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.

All our engineers are designers and all our designers are engineers.

One of the most fun inventions of my lifetime is the Mini.