Edward Dowden - Leonardo's "Monna Lisa" lyrics

Make thyself known, Sibyl, or let despair Of knowing thee be absolute; I wait Hour-long and waste a soul. What word of fate Hides 'twixt the lips which smile and still forbear? Secret perfection! Mystery too fair! Tangle the sense no more lest I should hate Thy delicate tyranny, the inviolate Poise of thy folded hands, thy fallen hair. Nay, nay,--I wrong thee with rough words; still be Serene, victorious, inaccessible; Still smile but speak not; lightest irony Lurk ever 'neath thine eyelids' shadow; still O'ertop our knowledge; Sphinx of Italy Allure us and reject us at thy will!