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Poetry is the art of substantiating shadows, and of lending existence to nothing.

James Prior, Edmund Burke (1826). “Memoir of the Life and Character of the Right Hon. Edmund Burke: With Specimens of His Poetry and Letters and an Estimate of His Genius and Talents, Compared with Those of His Great Contemporaries. Enlarged to Two Volumes”, p.511
Poetry is the art of substantiating shadows, and of lending existence to nothing.