Strasberg: At present there is so much confusion, misunderstanding, and downright ignorance—not about the Stanislavski System, but about acting in general—that to begin to deal with this problem really would mean writing three complete books, one of which would be a detailed history of acting, showing the problems of the actor at different periods, another a psychological analysis of acting problems, and the third a description of the Stanislavski System and its relation to these problems.
Source
The Tulane Drama Review, Vol. 9, No. 1 (Autumn, 1964), pp. 117-135