We are told, _ad nauseam_, that the stage has laws of its own, to which all dramatists must bow. Quite true! The stage _has_ the highly technical laws of its physical conditions, which cannot be neglected. But even when they are all properly attended to, it is only behind the elbow of one who feels strongly and tries to express sincerely that right expression stands. The imaginative mood, coming who knows when, staying none too long, is a mistress who deserves, and certainly expects, fidelity. True to her while she is there, do not, when she is not there, insult her by looking in every face and thinking it will serve! These are laws of sincerity which not even a past-master in the laws of the stage can afford to neglect. Anything is better than resorting to moral sentiments and solutions because they are current coin, or to decoration because it is "the thing." And--as to humour: though nothing is more precious than the genuine topsy-turvy feeling, nothing is more pitifully unhumorous than the dragged-in epigram or dismal knockabout, which has no connection with the persons or philosophy of the play. I suppose it is easy to think oneself sincere; it is certainly difficult to be that same. Imagine the smile, and the blue pencil, of the Spirit of Sincerity if we could appoint him Censor. I would not lift my pen against that Censorship though he excised--as perhaps he might--the half of my work. Sometimes one has a glimpse of his ironic face and his swift fingers, busy with those darkening pages. Once I dreamed about him. It was while a certain Commission was sitting on the British Censorship, which still so admirably guards Insincerity, and he was giving evidence before them. This, I remember, was what he said: "You wish to learn of me what is sincerity? Look into yourselves, for what lies deepest within you. Each living thing varies from every other living thing, and never twice are there quite the same set of premises from which to draw conclusion. Give up asking of any but yourselves for the whereabouts of truth; and if some one says that he can tell you where it is, don't believe him; he might as well lay a trail of sand and think it will stay there for ever." He stopped, and I could see him looking to judge what impression he had made upon the Commission. But those gentlemen behaved as if they had not heard him. The Spirit of Sincerity coughed. "By Jove, gentlemen," he said, "it's clear you don't care what impression you make on me. Evidently it is for me to learn sincerity from you!"