Why make so much of fragmentary blue <br />In here and there a bird, or butterfly, <br />Or flower, or wearing-stone, or open eye, <br />When heaven presents in sheets the solid hue? <br /> <br />Since earth is earth, perhaps, not heaven (as yet)-- <br />Though some savants make earth include the sky; <br />And blue so far above us comes so high, <br />It only gives our wish for blue a whet.<br /><br />Robert Lee Frost<br /><br />http://www.poemhunter.com/poem/fragmentary-blue-2/