Is it for fear to wet a widow's eye <br /> That thou consumest thyself in single life? <br /> Ah! if thou issueless shalt hap to die. <br /> The world will wail thee, like a makeless wife; <br /> The world will be thy widow and still weep <br /> That thou no form of thee hast left behind, <br /> When every private widow well may keep <br /> By children's eyes her husband's shape in mind. <br /> Look, what an unthrift in the world doth spend <br /> Shifts but his place, for still the world enjoys it; <br /> But beauty's waste hath in the world an end, <br /> And kept unused, the user so destroys it. <br /> No love toward others in that bosom sits <br /> That on himself such murderous shame commits.<br /><br />William Shakespeare<br /><br />http://www.poemhunter.com/poem/sonnet-ix-2/