“A building has integrity, just as a man and just as seldom! It must be true to its own idea, have its own form, and serve its own purpose!".”

“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.”

“A building has integrity just like a man. And just as seldom.”

“My happiness is not the means to any end. It is the end. It is its own goal. It is its own purpose.”

“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.”

“A house can have integrity, just like a person,' said Roark, 'and just as seldom.”

“I told them that the form of a building must follow its function".”