Praecipitandus est liber spiritus, says Petronius most happily. The epithet, liber, here balances the preceding verb; and it is not easy to conceive more meaning condensed in fewer words. But if this should be admitted as a satisfactory character of a poem, we have still to seek for a definition of poetry. The writings of Plato, and Jeremy Taylor, and Burnet’s Theory of the Earth, furnish undeniable proofs that poetry of the highest kind may exist without metre, and even without the contradistringuishing objects of a poem. The first chapter of Isaiah--(indeed a very large portion of the whole book)--is poetry in the most emphatic sense; yet it would be not less irrational than strange to assert, that pleasure, and not truth was the immediate object of the prophet. In short, whatever specific import we attach to the word, Poetry, there will be found involved in it, as a necessary consequence, that a poem of any length neither can be, nor ought to be, all poetry. Yet if an harmonious whole is to be produced, the remaining parts must be preserved in keeping with the poetry; and this can be no otherwise effected than by such a studied selection and artificial arrangement, as will partake of one, though not a peculiar property of poetry. And this again can be no other than the property of exciting a more continuous and equal attention than the language of prose aims at, whether colloquial or written. My own conclusions on the nature of poetry, in the strictest use of the word, have been in part anticipated in some of the remarks on the Fancy and Imagination in the early part of this work. What is poetry?--is so nearly the same question with, what is a poet?--that the answer to the one is involved in the solution of the other. For it is a distinction resulting from the poetic genius itself, which sustains and modifies the images, thoughts, and emotions of the poet’s own mind.