Successes teach you nothing. Failures teach you everything. Making mistakes is the most important thing you can do.

I've obviously used fans - I wouldn't say all my life, because we couldn't afford them when I was young, but from my 20s and onwards we've had to use fans. And I've always loathed them. Everything about them. The way you adjust them, getting them at the angle you want. Carrying them. Cleaning them. The danger of putting your finger in them.

Manufacturing is more than just putting parts together. It's coming up with ideas, testing principles and perfecting the engineering, as well as final assembly.

Today, computers are almost second nature to most of us.

Successes teach you nothing. Failures teach you everything. Making mistakes is the most important thing you can do.

At school, I enjoyed playing the bassoon. I was in the orchestra and played the melody when the other boys sang hymns at prayers time.

Enjoy failure and learn from it. You never learn from success.