Whence arises this difference?
Not from the metre, not from the language, not from the order of the words; but the _matter_ expressed in Dr.Johnson's stanza is contemptible.

The proper method of treating trivial and simple verses, to which Dr.Johnson's stanza would be a fair parallelism, is not to say, this is a bad kind of poetry, or, this is not poetry; but, this wants sense; it is neither interesting in itself nor can _lead_ to anything interesting; the images neither originate in that sane state of feeling which arises out of thought, nor can excite thought or feeling in the Reader.

This is the only sensible manner of dealing with such verses.

Why trouble yourself about the species till you have previously decided upon the genus?
Why take pains to prove than an ape is not a Newton, when it is self-evident that he is not a man?
One request I must make of my reader, which is, that in judging these Poems he would decide by his own feelings genuinely, and not by reflection upon what will probably be the judgement of others.
How common is it to hear a person say, I myself do not object to this style of composition, or this or that expression, but, to such and such classes of people it will appear mean or ludicrous! This mode of criticism, so destructive of all sound unadulterated judgement, is almost universal: let the Reader then abide, independently, by his own feelings, and, if he finds himself affected, let him not suffer such conjectures to interfere with his pleasure.
If an Author, by any single composition, has impressed us with respect for his talents, it is useful to consider this as affording a presumption, that on other occasions where we have been displeased, he, nevertheless, may not have written ill or absurdly; and further, to give him so much credit for this one composition as may induce us to review what has displeased us, with more care than we should otherwise have bestowed upon it.

This is not only an act of justice, but, in our decisions upon poetry especially, may conduce, in a high degree, to the improvement of our own taste; for an _accurate_ taste in poetry, and in all the other arts, as Sir Joshua Reynolds has observed, is an _acquired_ talent, which can only be produced by thought and a long continued intercourse with the best models of composition.