I would never wear anything with a logo. That I really find difficult. It's a frustration that I'll find a nice shirt or something and it's got 50 prints of the logo on it - why do they do this?

There's a snobbery at work in architecture. The subject is too often treated as a fine art, delicately wrapped in mumbo-jumbo. In reality, it's an all-embracing discipline taking in science, art, maths, engineering, climate, nature, politics, economics.

Manhattan, one of the most moneyed spots on the planet, also has one of the greatest concentrations of people in its skyscrapers. Its also, of course, the place where every architect wants to build his tower.

As an architect you design for the present, with an awareness of the past, for a future which is essentially unknown.

You cannot separate the buildings out from the infrastructure of cites and the mobility of transit.

I hope that any expansion of London will learn from the planning examples of some of its most desirable areas such as Chelsea, Notting Hill, Belgravia and Mayfair. All are characterised by high density and a generosity of green spaces. They are all pedestrian-friendly with shops, entertainment, restaurants and pubs within easy walking distance.

Since Stonehenge, architects have always been at the cutting edge of technology. And you cant separate technology from the humanistic and spiritual content of a building.