From "Paul Rudolph: Lower Manhattan Expressway"
"One characteristic of the twentieth century is that nothing is ever completed, nothing is ever fixed. We don't think of things being complete within themselves...So the whole idea of the uncompleted building which is going to be expanded in unknown ways is an obsession."
Kilian, Steven, et al. "Paul Rudolph: Lower Manhattan Expressway" New York: The Drawing center, 2010. p. 18.