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.

Britain's great strength is its innovative, design and engineering natural ability and we're not using it.

Some of the best inventive moments are born out of 'wrong thinking'. Most people start with the right way so they all follow the same path. The wrong way will lead to mistakes from which you can learn and create new discoveries-the kind of original ideas that come to life when we dare to be different, keep an open mind, and have no fear of failure.

In the digital age of "overnight" success stories such as Facebook, the hard slog is easily overlooked.

I just want things to work properly.

When decisions on nuclear power stations and runways are delayed and the government dilly-dallies, people think they aren't important.