A network of uncertainties

Diego Rodríguez de Silva y Velázquez: Las Meninas

No gaze is stable, or rather, in the neutral furrow of the gaze piercing at a right angle through the canvas, subject and object, the spectator and the model, reverse their roles to infinity. 

                                                                        -Foucault, The Order of Things

             Diagram of Foucault's Las Meninas courtesy of http://twitter.com/naxos