"Every place is given its character by certain patterns of events that keep on happening there.... These patterns of events are locked in with certain geometric patterns in the space. Indeed, each building and each town is ultimately made out of these patterns in the space, and out of nothing else; they [patterns in the space] are the atoms and molecules from which a building or a town is made."
Christopher Wolfgang John Alexander was an Austrian-born British-American architect and design theorist. He was an emeritus professor at the University of California, Berkeley. His theories about the nature of human-centered design have affected fields beyond architecture, including urban design, software design, and sociology. Alexander designed and personally built more than 200 buildings, both
"When we know those moments, when we smile, when we let go, when we are not on guard at all – these are the moments when our most important forces show themselves; whatever you are doing at such a moment, hold on to it, repeat it – for that certain smile is the best knowledge that we ever have of what our hidden forces are, and where they lie, and how they can be loosed."
"One begins to think with that new building block, rather than with littler pieces. And finally, the things which seem like elements dissolve, and leave a fabric of relationships behind, which is the stuff that actually repeats itself, and gives the structure to a building or a town."
"Nothing which is not simple and direct can survive the slow transmision from person to person."
"...every pattern we define must be formulated in the form of a rule which establishes a relationship between a context, a system of forces which arises in that context, and a configuration which allows these forces to resolve themselves in that context."
"On the geometric level, we see certain physical elements repeated endlessly, combined in an almost endless variety of combinations... It is puzzling to realize that the elements, which seem like elementary building blocks, keep varying, and are different every time that they occur .... If the elements are different every time that they occur, evidently then, it cannot be the elements themselves which are repeating in a building or town; these so-called elements cannot be the ultimate "atomic" constituents of space."
"Look more carefully...to find out what it really is that is repeating there .... Beyond its elements, each building [or town] is defined by certain patterns of relationships among the elements.... These relationships are not extra, but necessary to the elements... The elements themselves are patterns of relationships."