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It is clear that a poem may be improperly brief. Undue brevity degenerates into mere epigrammatism. A very short poem, while now and then producing a brilliant or vivid, never produces a profound or enduring, effect. There must be the steady pressing down of the stamp upon the wax.

Edgar Allan Poe (2017). “Edgar Allan Poe: Complete Essays, Literary Studies, Criticism, Cryptography & Autography, Translations, Letters and Other Non-Fiction Works: The Philosophy of Composition, The Rationale of Verse, The Poetic Principle, Old English Poetry, Maelzel's Chess Player, Eureka, The Literati of New York, Fifty Suggestions, Exordium, Marginalia…”, p.52, e-artnow
It is clear that a poem may be improperly brief. Undue brevity degenerates into mere epigrammatism. A very short poem, while now and then producing a brilliant or vivid, never produces a profound or enduring, effect.