Essentially, perspective is a form of abstraction. It simplifies the relationship between eye, brain and object. It is an ideal view, imagined as being seen by a one-eyed, motionless person who is clearly detached from what he sees. It makes a God of the spectator, who becomes the person on whom the whole world converges, the Unmoved Onlooker.
Robert Hughes, The Shock of the New
objectivity, perspective