"Today we must regain, by conscious effort, the essential unity of function and form. It is not a question of 'city beautiful.' It is a question of discovering the forms that will most clearly give expression to the function of our cities, as the form of the old towns reflected their way of living. The social life of men is the specific side of nature that the city builder's art reflects. His task is the same as any artist's; as Albrecht Durer put it: 'For, verily, art is inherent in nature; he who can extract it therefrom will hold it.' "