The type of mind of Whitman's, which seldom or never emerges as a mere mentality, an independent thinking and knowing faculty, but always as a personality, always as a complete human entity, never can expound itself, because its operations are synthetic and not analytic, its mainspring is love and not mere knowledge. In his prose essay called "A Backward Glance o'er Travel'd Roads," appended to the final edition of his poems, Whitman has not so much sought to expound himself as to put his reader in possession of his point of view, and of the considerations that lie back of his work. This chapter might render much that I have written superfluous, were there not always a distinct gain in seeing an author through another medium, or in getting the equivalents of him in the thoughts and ideals of a kindred and sympathetic mind. But I have not consciously sought to expound Whitman, any more than in my other books I have sought to expound the birds or wild nature. I have written out some things that he means to me, and the pleasure and profit I have found in his pages. There is no end to what can be drawn out of him. It has been said and repeated that he was not a thinker, and yet I find more food for thought in him than in all other poets. It has been often said and repeated that he is not a poet, and yet the readers that respond to him the most fully appear to be those in whom the poetic temperament is paramount. I believe he supplies in fuller measure that pristine element, something akin to the unbreathed air of mountain and shore, which makes the arterial blood of poetry and literature, than any other modern writer. V We can make little of Whitman unless we allow him to be a law unto himself, and seek him through the clews which he himself brings. When we try him by current modes, current taste, and demand of him formal beauty, formal art, we are disappointed. But when we try him by what we may call the scientific standard, the standard of organic nature, and demand of him the vital and the characteristic,--demand of him that he have a law of his own, and fulfill that law in the poetic sphere,--the result is quite different. More than any other poet, Whitman is what we make him; more than any other poet, his greatest value is in what he suggests and implies, rather than in what he portrays; and more than any other poet must he wait to be understood by the growth of the taste of himself. "I make the only growth by which I can be appreciated," he truly says.