Most difficult thing in the world, to write a play. Do you know the story of Shaw at the Fabian society? H.G. Welles said "I'm terribly sorry I've missed the last five meetings, I've been terribly busy, I'm engaged in writing a scientific pamphlet on the effects of radioactivity in 1984 and I've produced a novel, and various pieces of science fiction to do, and I've had a bit of personal trouble, and I had my copy to bring out for the newspaper." Shaw leapt up and said, "I've not missed one meeting, and I have written a play!" hardest thing in the world. If it were easy they'd all be at it.