Everyone has the right to walk from one end of the city to the other in secure and beautiful spaces. Everybody has the right to go by public transport. Everybody has the right to an unhampered view down their street, not full of railings, signs and rubbish.

I'm just saying that there are high quality materials, and when we change them then there should be a way of changing them so that you can celebrate that change - rather than just 'mix it up'.

It is my belief that exciting things happen when a variety of overlapping activities designed for all people-the old and the young, the blue and white collar, the local inhabitant and the visitor, different activities for different occasions-meet in a flexible environment, opening up the possibility of interaction outside the confines of institutional limits. When this takes place, deprived areas welcome dynamic places for those who live, work and visit; places where all can participate, rather than less or more beautiful ghettos.

It is quite interesting that whilst there are tremendous theories, in the 1960s when IT was born, everybody was supposedly going to their cottage in the countryside to work in a virtual way.

There is a Jewish tradition of family, too, but then not all Italian or Jewish families are close.

Today is much more an age of greed

As an artist, what do you think the biggest mistake you can make is? My vote for the biggest mistake is being afraid of making mistakes.