It will now be proper to answer an obvious question, namely, Why, professing these opinions, have I written in verse?  To this, in addition to such answer as is included in what has been already said, I reply, in the first place, Because, however I may have restricted myself, there is still left open to me what confessedly constitutes the most valuable object of all writing, whether in prose or verse; the great and universal passions of men, the most general and interesting of their occupations, and the entire world of nature before me—­to supply endless combinations of forms and imagery.  Now, supposing for a moment that whatever is interesting in these objects may be as vividly described in prose, why should I be condemned for attempting to superadd to such description, the charm which, by the consent of all nations, is acknowledged to exist in metrical language?  To this, by such as are yet unconvinced, it may be answered that a very small part of the pleasure given by Poetry depends upon the metre, and that it is injudicious to write in metre, unless it be accompanied with the other artificial distinctions of style with which metre is usually accompanied, and that, by such deviation, more will be lost from the shock which will thereby be given to the Reader’s associations than will be counterbalanced by any pleasure which he can derive from the general power of numbers.  In answer to those who still contend for the necessity of accompanying metre with certain appropriate colours of style in order to the accomplishment of its appropriate end, and who also, in my opinion, greatly under-rate the power of metre in itself, it might, perhaps, as far as relates to these Volumes, have been almost sufficient to observe, that poems are extant, written upon more humble subjects, and in a still more naked and simple style, which have continued to give pleasure from generation to generation.  Now, if nakedness and simplicity be a defect, the fact here mentioned affords a strong presumption that poems somewhat less naked and simple are capable of affording pleasure at the present day; and, what I wished chiefly to attempt, at present, was to justify myself for having written under the impression of this belief.

But various causes might be pointed out why, when the style is manly, and the subject of some importance, words metrically arranged will long continue to impart such a pleasure to mankind as he who proves the extent of that pleasure will be desirous to impart.  The end of Poetry is to produce excitement in co-existence with an overbalance of pleasure; but, by the supposition, excitement is an unusual and irregular state of the mind; ideas and feelings do not, in that state, succeed each other in accustomed order.  If the words, however, by which this excitement is produced be in themselves powerful, or the images and feelings have an undue proportion of pain connected with them, there is some danger that the excitement may he carried