The great 19th century architect of skyscrapers, Louis Sullivan, promoted an overriding precept to architectural design: “Form follows function.” While the notion that structural and aesthetic conside...The great 19th century architect of skyscrapers, Louis Sullivan, promoted an overriding precept to architectural design: “Form follows function.” While the notion that structural and aesthetic considerations should be entirely subject to functionality was met with both approval and skepticism, it had the effect of introducing the concept of “function” in place of “utility.” “Function” came to be seen as encompassing all criteria of the use, perception, and enjoyment of a building, not only prac…