In An Actor Prepares Stanislavski deals with the inward preparation an actor must undergo in order to explore a role to the its full. He introduces the concepts of the 'magic of' units and objectives, of emotion memory, of the super-objective and many more now famous rehearsal aids."An Actor must work all his life, cultivate his mind, train his talents systematically, develop his character; he may never despair and never relinquish this main pupose - to love his art with all his strength and love it unselfishly." (Constantin Stanislavski)