 The stage is plotted out in a square, the four corners of which (lettered A-D) are to be marked either by two boots and two hats or by four boots, recalling the boots and hat found onstage in "Godot";" the midpoints were lettered E-G, and the centre, O.The idea goes back even further however, "indeed "Quad" may be regarded as the fulfillment onstage of the goal he had set himself in 1937 in the letter to Axel Kaun, the achieving of an entirely new means of expression through the elimination of language.