Quote from Modern Architecture, Louis Sullivan originally stated:
of all things physical and metaphysical,
of all things human and all things super-human,
of all true manifestations of the head, of the heart, of the soul,
Frank Lloyd Wright later said:
“‘Form follows function’ – that has been misunderstood.
Form and function should be one, joined in a spiritual union.”
Looking at Frank Lloyd Wright’s work it seems he uses the Fibonnaci Series as a design template.