Intricate minglings of different uses in cities are not a form of chaos. On the contrary, they represent a complex and highly developed form of order.

We've got a [Canadian] prime minister who seems to be intent on destroying our health system and education system. But I have gotten a thicker skin. I can get angry about these things without feeling like vomiting, if you know what I mean.

Sentimentality about nature denatures everything it touches.

To seek "causes" of poverty in this way is to enter an intellectual dead end because poverty has no causes. Only prosperity has causes.

There are fashions in building. Behind the fashions lie economic and technological reasons, and these fashions exclude all but a few genuinely different possibilities in city dwelling construction at any one time.

I get absolutely ruthless in my own way about not doing anything else when I am trying to concentrate on writing a book. I have to stick to it and concentrate.

Nothing is so clear in history that is it happens for any one thing. It seems that a lot of things come together to make great changes.