Often the most important moment in the design process is figuring out what the right question is.

The Garden Bridge has not found its right moment, but I hope one day it will and that London continues to be open to ideas that make life here better.

I'm wary of the word 'inventing,' because in the British psyche the word 'inventor' is immediately linked with 'mad'. For me, inventing is problem-solving.

I am finally getting the chance to build large structures and break preconceptions that my designs are just sculptures for people to be in. But my work always comes down to the human scale.

I try to be a positive person, but I'm also always looking and wondering, 'Maybe this could be done differently.' As soon as your mind is in a critical mode, you're halfway through designing; as soon as you start thinking about whether something could be better, you're already halfway through a solution.