It has been observed by Boileau, that "a mean or common thought expressed in pompous diction, generally pleases more than a new or noble sentiment delivered in low and vulgar language; because the number is greater of those whom custom has enabled to judge of words, than whom study has qualified to examine things." This solution might satisfy, if such only were offended with meanness of expression as are unable to distinguish propriety of thought, and to separate propositions or images from the vehicles by which they are conveyed to the understanding. But this kind of disgust is by no means confined to the ignorant or superficial; it operates uniformly and universally upon readers of all classes; every man, however profound or abstracted, perceives himself irresistibly alienated by low terms; they who profess the most zealous adherence to truth are forced to admit that she owes part of her charms to her ornaments; and loses much of her power over the soul, when she appears disgraced by a dress uncouth or ill-adjusted. We are all offended by low terms, but are not disgusted alike by the same compositions, because we do not all agree to censure the same terms as low. No word is naturally or intrinsically meaner than another; our opinion therefore of words, as of other things arbitrarily and capriciously established, depends wholly upon accident and custom. The cottager thinks those apartments splendid and spacious, which an inhabitant of palaces will despise for their inelegance; and to him who has passed most of his hours with the delicate and polite, many expressions will seem sordid, which another, equally acute, may hear without offence; but a mean term never fails to displease him to whom it appears mean, as poverty is certainly and invariably despised, though he who is poor in the eyes of some, may, by others, be envied for his wealth. Words become low by the occasions to which they are applied, or the general character of them who use them; and the disgust which they produce, arises from the revival of those images with which they are commonly united. Thus if, in the most solemn discourse, a phrase happens to occur which has been successfully employed in some ludicrous narrative, the gravest auditor finds it difficult to refrain from laughter, when they who are not prepossessed by the same accidental association, are utterly unable to guess the reason of his merriment. Words which convey ideas of dignity in one age, are banished from elegant writing or conversation in another, because they are in time debased by vulgar mouths, and can be no longer heard without the involuntary recollection of unpleasing images. When Macbeth is confirming himself in the horrid purpose of stabbing his king, he breaks out amidst his emotions into a wish natural to a murderer: