While the epic mania, while the idea that to merit in poetry prolixity is indispensable, has for some years past been gradually dying out of the public mind, by mere dint of its own absurdity, we find it succeeded by a heresy too palpably false to be long tolerated, but one which, in the brief period it has already endured, may be said to have accomplished more in the corruption of our Poetical Literature than all its other enemies combined. I allude to the heresy of The Didactic. It has been assumed, tacitly and avowedly, directly and indirectly, that the ultimate object of all Poetry is truth. Every poem, it is said, should inculcate a moral, and by this moral is the poetical merit of the work to be adjudged. We Americans especially have patronized this happy idea, and we Bostonians very especially have developed it in full. We have taken it into our heads that to write a poem simply for the poem's sake, and to acknowledge such to have been our design, would be to confess ourselves radically wanting in the true poetic dignity and force:—but the simple fact is that would we but permit ourselves to look into our own souls we should immediately there discover that under the sun there neither exists nor can exist any work more thoroughly dignified, more supremely noble, than this very poem, this poem per se, this poem which is a poem and nothing more, this poem written solely for the poem's sake.