Why I talked about political correctness: the colonial is now such a major taboo that any achievement of the colonial period, or any generosity implied in colonialism, is again fundamentally neglected or fundamentally not recognised. That's crazy, because history is a series of layers, and you cannot say, "This layer I support and this layer I cancel." History is history and you cannot retrospectively manipulate it.

Nigeria [in 1990] was all rumour, an unbelievable amount of rumour - largely about crime and almost mythical manifestations of evil.

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.

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.

There is no plateau of resting or stabilising. Once you are interested in how things evolve, you have a kind of never-ending perspective, because it means you are interested in articulating the evolution, and therefore the potential change, the potential redefinition.

You need to look at inequality as a typical condition of modern society.

We live in an almost perfect stillness and work with incredible urgency.