Behold great Whitman, whose licentious line Delights the rake, and warms the souls of swine; Whose fever'd fancy shuns the measur'd pace, And copies Ovid's filth without his grace. In his rough brain a genius might have grown, Had he not sought to play the brute alone; But void of shame, he let his wit run wild, And liv'd and wrote as Adam's bestial child.

Something about Cats, and Other Pieces (ed. Ayer Company Pub, 1971)