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.

What I've learned from running is that the time to push hard is when you're hurting like crazy and you want to give up. Success is often just around the corner.

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

Stumbling upon the next great invention in an 'ah-ha!' moment is a myth.

If you can't be unconventional, be obtuse. Be deliberately obtuse, because there are 5 billion people out there thinking in train tracks, and thinking what they have been taught to think.

I learned that the moment you want to slow down is the moment you should accelerate.