The office of philosophical disquisition consists in just distinction; while it is the privilege of the philosopher to preserve himself constantly aware, that distinction is not division. In order to obtain adequate notions of any truth, we must intellectually separate its distinguishable parts; and this is the technical process of philosophy. But having so done, we must then restore them in our conceptions to the unity, in which they actually co-exist; and this is the result of philosophy. A poem contains the same elements as a prose composition; the difference therefore must consist in a different combination of them, in consequence of a different object proposed. According to the difference of the object will be the difference of the combination. It is possible, that the object may be merely to facilitate the recollection of any given facts or observations by artificial arrangement; and the composition will be a poem, merely because it is distinguished from composition in prose by metre, or by rhyme, or by both conjointly. In this, the lowest sense, a man might attribute the name of a poem to the well-known enumeration of the days in the several months;

Thirty days hath September,

April, June, and November, &c.

and others of the same class and purpose. And as a particular pleasure is found in anticipating the recurrence of sounds and quantities, all compositions that have this charm superadded, whatever be their contents, may be entitled poems.

So much for the superficial form. A difference of object and contents supplies an additional ground of distinction. The immediate purpose may be the communication of truths; either of truth absolute and demonstrable, as in works of science; or of facts experienced and recorded, as in history. Pleasure, and that of the highest and most permanent kind, may result from the attainment of the end; but it is not itself the immediate end. In other works the communication of pleasure may be the immediate purpose—and thought truth either moral or intellectual, ought to be the ultimate end, yet this will distinguish the character of the author, not the class to which the work belongs. Blessed indeed is that state of society, in which the immediate purpose would be baffled by the perversion of the proper ultimate end; in which no charm of diction or imagery could exempt the Bathyllus even of an Anacreon, or the Alexis of Virgil, from disgust and aversion!

But the communication of pleasure may be the immediate object of a work not metrically composed; and that object may have been in a high degree attained, as in novels and romances. Would then the mere superaddition of metre, with or without rhyme, entitle these to the name of poems? The answer is, that nothing can permanently please, which does not contain in itself the reason why it is so, and not otherwise. If metre be superadded, all other parts must be made consonant with it. They must be such, as to justify the perpetual and distinct attention to each part, which an exact correspondent recurrence of accent and sound are calculated to excite. The final definition then so deduced, may be thus worded. A poem is that species of composition, which is opposed to works of science, by proposing for its immediate object pleasure; not truth; and from all other species (having this object in common with it) it is discriminated by proposing to itself such delight from the whole, as is compatible with a distinct ratification from each component part.

Controversy is not seldom excited in consequence of the disputants attaching each a different meaning to the same word; and in few instances has this been more striking, than in disputes concerning the present subject. If a man chooses to call every composition a poem, which is rhyme, or measure, or both, I must leave his opinion uncontroverted. The distinction is at least competent to characterize the writer’s intention. If it were subjoined, that the whole is likewise entertaining or affecting, as a tale, or as a series of interesting reflections, I of course admit this as another fit ingredient of a poem, and an additional merit. But if the definition sought for be that of a legitimate poem, I answer, it must be one, the parts of which mutually support and explain each other; all in their proportion harmonizing with, and supporting the purpose and known influences of metrical arrangement. The philosophic critics of all ages coincide with the ultimate judgment of all countries, in equally denying the praises of a just poem, on the one hand, to a series of striking lines or distichs, each of which absorbing the whole attention of the reader to itself disjoins it from its context, and makes it a separate whole, instead of an harmonizing part; and on the other hand, to an unsustained composition, from which the reader collects rapidly the general result unattracted by the component parts. The reader should be carried forward, not merely or chiefly by the mechanical impulse of curiosity, or by a restless desire to arrive at the final solution; but by the pleasurable activity of mind excited by the attractions of the journey itself. Like the motion of a serpent, which the Egyptians made the emblem of intellectual power; or like the path of sound through the air; at every step he pauses and half recedes, and from the retrogressive movement collects the force which again carries him onward. Precipitandus est liber spiritus [the free spirit must be hurried onward—ed.], says Petronius Arbiter most happily. The epithet, liber, here balances the preceding verb; and it is not easy to conceive more meaning condensed in fewer words.