William Shakespeare’s Sonnet III

Look in thy glass and tell the face thou viewest   
Now is the time that face should form another;   
Whose fresh repair if now thou not renewest,   
Thou dost beguile the world, unbless some mother.   
For where is she so fair whose unear'd womb   
Disdains the tillage of thy husbandry?   
Or who is he so fond will be the tomb,   
Of his self-love to stop posterity?   
Thou art thy mother's glass and she in thee   
Calls back the lovely April of her prime;   
So thou through windows of thine age shalt see,   
Despite of wrinkles this thy golden time.     
  But if thou live, remember'd not to be,     
  Die single and thine image dies with thee.