if genuine, is as permanent as pure science), her appropriate employment, her privilege and her duty, is to treat of things not as they are, but as they appear; not as they exist in themselves, but as they seem to exist to the senses, and to the passions.  What a world of delusion does this acknowledged obligation prepare for the inexperienced! what temptations to go astray are here held forth for them whose thoughts have been little disciplined by the understanding, and whose feelings revolt from the sway of reason!—­When a juvenile Reader is in the height of his rapture with some vicious passage, should experience throw in doubts, or common sense suggest suspicions, a lurking consciousness that the realities of the Muse are but shows, and that her liveliest excitements are raised by transient shocks of conflicting feeling and successive assemblages of contradictory thoughts—­is ever at hand to justify extravagance, and to sanction absurdity.  But, it may be asked, as these illusions are unavoidable, and, no doubt, eminently useful to the mind as a process, what good can be gained by making observations, the tendency of which is to diminish the confidence of youth in its feelings, and thus to abridge its innocent and even profitable pleasures?  The reproach implied in the question could not be warded off, if Youth were incapable of being delighted with what is truly excellent; or, if these errors always terminated of themselves in due season.  But, with the majority, though their force be abated, they continue through life.  Moreover, the fire of youth is too vivacious an element to be extinguished or damped by a philosophical remark; and, while there is no danger that what has been said will be injurious or painful to the ardent and the confident, it may prove beneficial to those who, being enthusiastic, are, at the same time, modest and ingenuous.  The intimation may unite with their own misgivings to regulate their sensibility, and to bring in, sooner than it would otherwise have arrived, a more discreet and sound judgement.

If it should excite wonder that men of ability, in later life, whose understandings have been rendered acute by practice in affairs, should be so easily and so far imposed upon when they happen to take up a new work in verse, this appears to be the cause;—­that, having discontinued their attention to poetry, whatever progress may have been made in other departments of knowledge, they have not, as to this art, advanced in true discernment beyond the age of youth.  If, then, a new poem fall in their way, whose attractions are of that kind which would have enraptured them during the heat of youth, the judgement not being improved to a degree that they shall be disgusted, they are dazzled, and prize and cherish the faults for having had power to make the present time vanish before them, and to throw the mind back, as by enchantment, into the happiest season of life.  As they read, powers seem to be revived, passions are regenerated, and pleasures restored.  The Book was probably taken up after an escape from the burden of business, and with a wish to forget the world, and all its vexations and anxieties.  Having obtained this wish, and so much more, it is natural that they should make report as they have felt.