• The viewer becomes aware of himself and of his movement through the plaza. As he moves, the sculpture changes. Contraction and expansion of the sculpture result from the viewer's movement. Step by step the perception not only of the sculpture but of the entire environment changes.

    Richard Serra, William Diamond (1985). “In the matter of a public hearing on the "Tilted arc" outdoor sculpture located in front plaza of Jacob Javits Federal Office Building: held at the Ceremonial Room, International Trade Court, One Federal Plaza, New York, New York ... : before: William Diamond, ... [et al.].”