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.

It may be that we have become so feckless as a people that we no longer care how things work but only the kind of quick, easy outer impression that they get.

In wretched outcomes, the devil is in the details.

By its nature, the metropolis provides what otherwise could be given only by traveling; namely, the strange.

Lowly, unpurposeful and random as they may appear, sidewalk contacts are the small change from which a city's wealth of public life may grow.

New ideas must use old buildings

Cities never flourish alone. They have to be trading with other cities.