With the early prototypes, I held the phone to my ear and my ear [would] dial the number. You have to detect all sorts of ear-shapes and chin shapes, skin colour and hairdo... that was one of just many examples where we really thought, perhaps this isn’t going to work.

When our tools are broken, we feel broken. And when somebody fixes one, we feel a tiny bit more whole.

Designing and developing anything of consequence is incredibly challenging.

Design is a word that's come to mean so much that it's also a word that has come to mean nothing.

Really great design is hard. Good is the enemy of great.

The design process is about designing and prototyping and making. When you separate those, I think the final result suffers.

I left London in 1992, but I'm there 3-4 times a year, and love visiting.