'There is nothing in nature that you may not get a quotation out of Wordsworth to suit, and a quotation too that breathes the very soul of poetry. There are only three books in the world that are worth the opening in search of mottos and quotations, and all of them are alike rich. These are, the Old Testament, Shakspeare, and the poetical works of Wordsworth, and, strange to say, the "Excursion" abounds most in them'.