What is now called "green architecture" is an opportunistic caricature of a much deeper consideration of the issues related to sustainability that architecture has been engaged with for many years. It was one of the first professions that was deeply concerned with these issues and that had an intellectual response to them.

I like fashion, whether or not it's overpriced, because it creates a sense of the sublime with relatively few means.

When air conditioning, escalators, and advertising appeared, shopping expanded its scale, but also limited its spontaneity. And it became much more predictable, almost scientific. What had once been the most surprising became the most manipulated.

In a script, you have to link various episodes together, you have to generate suspense and you have to assemble things - through editing, for example. It's exactly the same in architecture. Architects also put together spatial episodes to make sequences.

In Lagos there's a really strong case to resurrect strong parts. Embedded in all of it are some amazing pieces of planning, amazing pieces of engineering and interaction. For instance, the campus of Lagos University is stunningly beautiful, efficient and generous, and that needs to be recognised and preserved.

I think one of the important evolutions is that we no longer feel compulsively the need to argue, or to justify things on a kind of rational level. We are much more willing to admit that certain things are completely instinctive and others are really intellectual.

Talk about beauty and you get boring answers, but talk about ugliness and things get interesting.