Walkers are 'practitioners of the city,' for the city is made to be walked. A city is a language, a repository of possibilities, and walking is the act of speaking that language, of selecting from those possibilities. Just as language limits what can be said, architecture limits where one can walk, but the walker invents other ways to go.

For many years, I have been moved by the blue at the far edge of what can be seen, that color of horizons, of remote mountain ranges, of anything far away. The color of that distance is the color of an emotion, the color of solitude and of desire, the color of there seen from here, the color of where you are not. And the color of where you can never go.

The object we call a book is not the real book, but its potential, like a musical score or seed. It exists fully only in the act of being read; and its real home is inside the head of the reader, where the symphony resounds, the seed germinates. A book is a heart that only beats in the chest of another.

We have only the language for fun and miserable, and maybe we need language for deep and shallow, meaningful and meaningless.

Lost really has two disparate meanings. Losing things is about the familiar falling away, getting lost is about the unfamiliar appearing.

Books are solitudes in which we meet.

...the gym is a kind of wildlife preserve for bodily exertion. A preserve protects species whose habitat is vanishing elsewhere, and the gym (and home gym) accommodates the survival of bodies after the abandonment of the original sites of bodily exertion.