In frank comedy we see the situation more accurately dealt with and hence more honestly and more instructively. Instead of depicting one party as revolting against the assumption of eternal fidelity melodramatically and the other as facing the revolt heroically and tragically, we have both criticizing it by a good-humored flouting of it—not necessarily by act, but by attitude. This attitude is normal and sensible. It rests upon genuine human traits and tendencies. It is sound, natural and honest. It gives the comedy of the stage a high validity that the bombastic fustian of the stage can never show, all the sophomores to the contrary notwithstanding. When I speak of infidelity, of course, I do not mean only the gross infidelity of “strong” sex plays and the divorce courts, but that lighter infidelity which relieves and makes bearable the burdens of theoretical fidelity—in brief, the natural reaction of human nature against an artificial and preposterous assumption. The assumption is that a sexual choice, once made, is irrevocable—more, that all desire to revoke it, even transiently, disappears. The fact is that no human choice can ever be of that irrevocable character, and that the very existence of such an assumption is a constant provocation to challenge it and rebel against it. What we have in marriage actually—or in any other such contract—is a constant war between the impulse to give that rebellion objective reality and a social pressure which puts a premium on submission. The rebel, if he strikes out, at once collides with a solid wall, the bricks of which are made up of the social assumption of his docility, and the mortar of which is the frozen sentimentality of his own lost yesterday—his fatuous assumption that what was once agreeable to him would be always agreeable to him. Here we have the very essence of comedy—a situation almost exactly parallel to that of the pompous old gentleman who kicks a plug hat lying on the sidewalk, and stumps his toe against the cobblestone within.