The life of a character should be an unbroken line of events and emotions, but a play only gives us a few moments on that line - we must create the rest to portray a convincing life.
Constantin StanislavskiA true priest is aware of the presence of the altar during every moment that he is conducting a service. It is exactly the same way that a true artist should react to the stage all the time he is in the theater. An actor who is incapable of this feeling will never be a true artist.
Constantin StanislavskiAll action in theatre must have inner justification, be logical, coherent, and real.
Constantin StanislavskiAll art is autobiographical - if it's not, it's not going to quicken on-stage, and it's not going to come alive.
Constantin StanislavskiNever lose yourself on the stage. Always act in your own person, as an artist. The moment you lose yourself on the stage marks the departure from truly living your part and the beginning of exaggerated false acting. Therefore, no matter how much you act, how many parts you take, you should never allow yourself any exception to the rule of using your own feelings. To break that rule is the equivalent of killing the person you are portraying, because you deprive him of a palpitating, living, human soul, which is the real source of life for a part.
Constantin Stanislavski