Campbell in his "Essay on English Poetry" (prefixed to his "Specimens") may be read with interest after Hallam. Accepting from Johnson as Johnson from Dryden the name of "metaphysical poets," he observes:--"The term of metaphysical poetry would apply with much more justice to the quatrains of Sir John Davies and those of Sir Fulke Greville, writers who, at a later period, found imitators in Sir Thomas Overbury and Sir William Davenant. Davies's poem on the Immortality of the Soul, entitled "_Nosce teipsum_," will convey a much more favourable idea of metaphysical poetry than the wittiest effusions of Donne and his followers. Davies carried abstract reasoning into verse with an acuteness and felicity which have seldom been equalled. He reasons undoubtedly with too much labour, formality, and subtlety, to afford uniform poetical pleasure. The generality of his stanzas exhibit hard arguments interwoven with the pliant materials of fancy so closely, that we may compare them to a texture of cloth and metallic threads, which is cold and stiff, while it is splendidly curious. There is this difference, however, between Davies and the commonly-styled metaphysical poets, that _he_ argues like a hard thinker, and _they_, for the most part, like madmen. If we conquer the drier parts of Davies' poem, and bestow a little attention on thoughts which were meant, not to gratify the indolence, but to challenge the activity of the mind, we shall find in the entire essay fresh beauties at every perusal: for in the happier parts we come to logical truths so well illustrated by ingenious similes, that we know not whether to call the thoughts more poetically or philosophically just. The judgment and fancy are reconciled, and the imagery of the poems seems to start more vividly from the surrounding shades of abstraction." The 'coldness' of 'cloth and metallic threads' which the critic applies to the 'hard arguments' of _Nosce Teipsum_ is a mere imagination. But besides, the 'metallic threads' are not for warmth but for splendour. The lining of the 'splendidly curious' garment is to be looked for for warmth. Similarly the 'hard arguments' would have been unpoetical as unphilosophical had they been 'warm' with the warmth of the 'clothing' in similes and fancies. The 'hardness' is where it ought to be--in the thinking: but it is a hardness like the bough that is green with leafage and radiant with bloom and odorous with 'sweet scent' and pliant to every lightest touch of the breeze. The leaf and bloom start from the 'hard' bough rightly, fittingly 'hard' to its utmost twig. The alleged 'too much labour' is singularly uncharacteristic. As for the 'madness' I can but exclaim--Oh for more of such 'fine lunacy' as in Donne is condemned! His and compeers' 'madness' is worth cart-loads of most men's sanity.