"Rules?" said Roark. "Here are my rules: what can be done with one substance must never be done with another. No two materials are alike. No two sites on earth are alike. No two buildings have the same purpose. The purpose, the site, the material determine the shape. Nothing can be reasonable or beautiful unless it's made by one central idea, and the idea sets every detail. A building is alive, like a man. Its integrity is to follow its own truth, its one single theme, and to serve its own single purpose. A man doesn't borrow pieces of his body. A building doesn't borrow hunks of its soul. Its maker gives it the soul and every wall, window and stairway to express it."
"Mr. Janss, when you buy an automobile, you don't want it to have rose garlands about the windows, a lion on each fender and an angel sitting on the roof. Why don't you?"
"That would be silly," stated Mr. Janss.
"Why would it be silly? Now I think it would be beautiful. Besides, Louis the Fourteenth had a carriage like that and what was good enough for Louis is good enough for us. We shouldn't go in for rash innovations and we shouldn't break with tradition."
"Now you know damn well you don't believe anything of the sort!"
"I know I don't. But that's what you believe, isn't it? Now take a human body. Why wouldn't you like to see a human body with a curling tail with a crest of ostrich feathers at the end? And with ears shaped like acanthus leaves? It would be ornamental, you know, instead of the stark, bare ugliness we have now. Well, why don't you like the idea? Because it would be useless and pointless. Because the beauty of the human body is that it hasn't a single muscle which doesn't serve its purpose; that there's not a line wasted; that every detail of it fits one idea, the idea of a man and the life of a man. Will you tell me why, when it comes to a building, you don't want it to look as if it had any sense or purpose, you want to choke it with trimmings, you want to sacrifice its purpose to its envelope - not knowing even why you want that kind of an envelope? You want it to look like a hybrid beast produced by crossing the bastards of ten different species until you get a creature without guts, without heart or brain, a creature all pelt, tail, claws and feathers? Why? You must tell me, because I've never been able to understand it."
"Well," said Mr. Janss, "I've never thought of it that way." He added, without great conviction: "But we want our building to have dignity, you know, and beauty, what they call real beauty."
"What who calls what beauty?"
"Well-l-l..."
...
"What is it that I like so much about the house you're building for me, Howard?"
"A house can have integrity, just like a person," said Roark, "and just as seldom."
"In what way?"
"Well, look at it. Every piece of it is there because the house needs it - and for no other reason. You see it from here as it is inside. The rooms in which you'll live made the shape. The relation of masses was determined by the distribution of space within. The ornament was determined by the method of construction, an emphasis of the principle that makes it stand. You can see each stress, each support that meets it. Your own eyes go through a structural process when you look at the house, you can follow each step, you see it rise, you know what made it and why it stands. But you've seen buildings with columns that support nothing, with purposeless cornices, with pilasters, moldings, false arches, false windows. You've seen buildings that look as if they contained a single large hall, they have solid columns and single, solid windows six floors high. But you enter and find six stories inside. Or buildings that contain a single hall, but with a facade cut up into floor lines, band courses, tiers of windows. Do you understand the difference? Your house is made by its own needs. Those others are made by the need to impress. The determining motive of your house is in the house. The determining motive of the others is in the audience."
- Ayn Rand, The Fountainhead
