Beshrew that heart that makes my heart to groan <br />For that deep wound it gives my friend and me! <br />Is't not enough to torture me alone, <br />But slave to slavery my sweet'st friend must be? <br />Me from my self thy cruel eye hath taken, <br />And my next self thou harder hast engrossed. <br />Of him, myself, and thee I am forsaken— <br />A torment thrice threefold thus to be crossed. <br />Prison my heart in thy steel bosom's ward, <br />But then my friend's heart let my poor heart bail; <br />Whoe'er keeps me, let my heart be his guard, <br />Thou canst not then use rigour in my jail. <br /> And yet thou wilt; for I, being pent in thee, <br /> Perforce am thine, and all that is in me.<br /><br />William Shakespeare<br /><br />http://www.poemhunter.com/poem/sonnet-133-beshrew-that-heart-that-makes-my-hear/
