In this see thou thy beauty, hast thou any, <br />Or thy defects, should they be few or many. <br />Thou may'st, too, here thy spots and freckles see, <br />Hast thou but eyes, and what their numbers be. <br />But art thou blind? There is no looking-glass <br />Can show thee thy defects, thy spots, or face. <br /> <br />Comparison. <br /> <br />Unto this glass we may compare the Word, <br />For that to man advantage doth afford <br />(Has he a mind to know himself and state), <br />To see what will be his eternal fate. <br />But without eyes, alas! how can he see? <br />Many that seem to look here, blind men be. <br />This is the reason they so often read <br />Their judgment there, and do it nothing dread.<br /><br />John Bunyan<br /><br />http://www.poemhunter.com/poem/upon-a-looking-glass/
