The words and wisdom of Constantin Stanislavski:
Much which seemed natural to me was in reality born of old theatrical frumpery. The most terrible thing of all is when self-conceit deceives the actor and when a disjointedness is formed between his body and his soul, between living over a part and its incarnification, when a muscular rebirth goes on in the body of the actor. Then his nature, his voice, his gestures, his mimetics, become crippled, like a spoiled and badly tuned piano. I was shaken. . . . (MLIA)