Thou blind fool, Love, what dost thou to mine eyes <br />That they behold and see not what they see? <br />They know what beauty is, see where it lies, <br />Yet what the best is, take the worst to be. <br />If eyes corrupt by overpartial looks, <br />Be anchored in the bay where all men ride, <br />Why of eyes' falsehood hast thou forgèd hooks, <br />Whereto the judgment of my heart is tied? <br />Why should my heart think that a several plot <br />Which my heart knows the wide world's common place? <br />Or mine eyes seeing this, say this is not <br />To put fair truth upon so foul a face? <br /> In things right true my heart and eyes have erred, <br /> And to this false plague are they now transferred.<br /><br />William Shakespeare<br /><br />http://www.poemhunter.com/poem/sonnet-137-thou-blind-fool-love-what-dost-thou-t/