Meyerhold:
An actor must possess the capacity for Reflex Excitability. Nobody can become an actor without it… From a sequence of physical positions and situations there arise points of excitation which are informed with some physical emotion. Biomechanics establishes the principles of precise analytical execution of each motion, establishes the differentiation of each motion for purposes of maximum precision, demonstrativeness -- visual Taylorism of motion (Sign of refusal -- the establishing of the start and end points of motion, a pause after each accomplished motion, the geometrization of movement in planes.) We must be able to show the modern actor on stage as a complete automation. The actor's art is the creation of plastic forms in space. Therefore, the actor's art is the ability to utilize the expressive potential of his body correctly. This means that the route to image and feeling must begin not with experience, not with seeking to plumb the meaning of the role, not with an attempt to assimilate the psychological essence of the phenomenon, in sum, not "from within" but from without; it must begin with motion. This means the motion of an actor excellently trained, possessing musical rhythm and easy, reflectory excitability; an actor whose natural abilities have been developed by systematic training. BioMechanics.
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