It is in dialogue with pain that many beautiful things acquire their value. Acquaintance with grief turns out to be one of the more unusual prerequisites of architectural appreciation. We might, quite aside from all other requirements, need to be a little sad before buildings can properly touch us.

The ideal architect should be a man of letters, a skillful draftsman, a mathematician, familiar with historical studies, a diligent student of philosophy, acquainted with music, not ignorant of medicine, learned in the responses of jurisconsults, familiar with astronomy and astronomical calculations.

The Italian landscape has always harmonized the vulgar and the Vitruvian: the contorni around the duomo, the portiere'S laundry across the padrone's portone, Supercortemaggiore against the Romanesque apse. Naked children have never played in our fountains, and I. M. Pei will never be happy on Route 66.

We need – more urgently than architectural utopias, ingenious traffic disposal systems, or ecological programmes – to comprehend the nature of citizenship, to make serious imaginative assessment of that special relationship between the self and the city; its unique plasticity, its privacy and freedom.

A ceux qui, absorbés maintenant dans le problème de "la machine à habiter", déclaraient que "l'architecture c'est servir", nous avons répondu: "L'architecture c'est émouvoir". Et nous avons été taxé de "poète", avec dédain

Inside the building, the sun lights up segments of the rotting wooden floor through the many holes in the roof. As I look for her, I register things: the soggy floorboards. The smell of almonds, like her. An old claw-footed bathtub in a corner. So many holes everywhere that this place is simultaneously inside and outside.

It is my trade," he said. "I work for the bean family, and every day there are deaths among the beans, mostly from thirst. They shrivel and die, they go blind in their one black eye, and I put them in one of these tiny coffins. Beans, you know, are beautifully shaped, like a new church, like modern architecture, like a planned city

Bad architecture is in the end as much a failure of psychology as of design. It is an example expressed through materials of the same tendencies which in other domains will lead us to marry the wrong people, choose inappropriate jobs and book unsuccessful holidays: the tendency not to understand who we are and what will satisfy us.

As we live and as we are, Simplicity - with a capital "S" - is difficult to comprehend nowadays. We are no longer truly simple. We no longer live in simple terms or places. Life is a more complex struggle now. It is now valiant to be simple: a courageous thing to even want to be simple. It is a spiritual thing to comprehend what simplicity means.

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.

While for critics of sprawl the generic signifies a loss of local identity and connection to place, for Koolhaas it represents an opportunity for reinvention and fantasy free from nostalgia or provincial habit. He admires the generic's accessibility, impermanence, economy of imagination, and malleable lack of authenticity or moralizing agenda.

When they first built the University of California at Irvine they just put the buildings in. They did not put any sidewalks, they just planted grass. The next year, they came back and put the sidewalks where the trails were in the grass. Perl is just that kind of language. It is not designed from first principles. Perl is those sidewalks in the grass.

When experiencing a work of art, a curious exchange takes place; the work projects its aura, and we project our own emotions and precepts on the work. The melancholy in Michelangelo's architecture is fundamentally the viewer's sense of his/her own melancholy enticed by the authority of the work. Enigmatically, we encounter ourselves in the work.

To attempt to build up theories of art, or to form a new style, would be an act of supreme folly. It would be at once to reject the experiences and accumulated knowledge of thousands of years. On the contrary, we should regard as our inheritance all the successful labours of the past, not blindly following them, but employ simply as guides to find the true path.

I believe that the idea of the totality, the finality of the master-plan, is misguided. One should advocate a gradual transformation of public space, a metamorphic process, without relying on a hypothetical time in the future when everything will be perfect. The mistake of planners and architects is to believe that fifty years from now Alexanderplatz will be perfected. -p.197