The words and wisdom of Constantin Stanislavski:
It remains unknown why certain places in a play are laughed at by everybody at all performances in one city, while altogether different places in the same play produce the same results in other cities. We did not know why the new spectator did not accept the famous laughing places in a play as such, nor did we know how to change our individual and collective performances in order to reach the seat of his emotions. (MLIA)