“Could you succeed in doing this?“ I asked. “No,” admitted Paul. “But we did get an idea of how it will feel when we shall have worked up to that point.”
“Is it really so difficult?” I asked, puzzled. “At first it looks easy. And yet not one of us was able to do the exercise properly. Apparently there is no escape from completely transforming ourselves if we are to be adapted to the demands of our art. Defects that pass in ordinary life become noticeable in the glare of the footlights and they make a definite impression on the public.”…
Since they did not succeed in part they could not succeed in the whole exercise, which was so much more difficult. Page 104 An Actor Prepares by Stanislavski