No poem can turn out respectably well unless written in the full confidence that this time at last the poet is going to attain perfect expression. So long as this confidence survives he goes on revising the poem at intervals for days or months until nothing more can be done, and the inevitable sense of failure is felt, leaving him at liberty to try again. It is on this inevitable failure that the practice of every art is made conditional. * * * * * A man once went into an ironmonger’s shop and said hesitatingly, “Do you sell those gadgets for fixing on doors?” “Well, sir,” replied the assistant, “I am not quite sure if I understand your requirements, but I take it you are needing a patent automatic door-closer?” “Exactly,” said the customer. “One to fix on my pantry door which, by the way, contains a glass window.” “You will want a cheap one, sir?” “Cheap but serviceable.” “You will prefer an English make, sir?” “Indeed, that’s a most important consideration.” “You will perhaps want one with ornamentations, scroll work and roses for instance?” “Oh no, nothing of that sort, thank you. I want it as plain and unobtrusive as possible.” “You would like it made of some rustless metal, sir?” “That would be very convenient.” “And with a strong spring?” “Well, moderately strong.” “To be fixed on which side, sir?” “Let me see; the right-hand side.” “Now, sir,” said the assistant, “I will go through each point, one by one. You want an efficient (but not too costly) English made, unobtrusive, rustless, unornamented, patent automatic door closer, to be fixed right-handed with a moderately strong spring to a pantry door with a glass window. Is there any further desideratum, sir?” “Well, it’s very good of you to help me like this (“Not at all, sir”). I should like it easily adjusted and easily removed, and above all it must not squeak or need constant oiling.” “In fact, sir, you want an apparatus combining a variety of qualities, in a word, an absolutely silent, efficient, economical, invisible, corrosive proof, unornamented, not-too-heavily-springed, easily adjustable, readily removable, British-made, right-handed, patent automatic door closer, ideally fitted in every possible respect for attaching to your pantry door which (I understand you to say) contains a glass window. How is that, sir?” “Splendid, splendid.” “Well, sir, I regret that there has never been any article of that description put on the market, but if you care to visit our wholesale department across the road, you may perhaps be able to make your choice from a reasonably large selection of our present imperfect models. Good day, sir.” XLVII SEQUELS ARE BARRED If you solve a problem to the best of your ability, it never bothers you again. Enough said: but the following emblem may be taken to heart:-- EPITAPH ON AN UNFORTUNATE ARTIST