When I Have Fears

When I have fears that I may cease to be
  Before my pen has gleaned my teeming brain,
Before high-piléd books, in charact'ry,
  Hold like rich garners the full-ripened grain;
When I behold, upon the night's starred face,
  Huge cloudy symbols of a high romance,
And think that I may never live to trace
  Their shadows, with the magic hand of chance;
And when I feel, fair creature of an hour,
  That I shall never look upon thee more,
Never have relish in the faery power
  Of unreflecting love!---then on the shore
Of the wide world I stand alone, and think
Till Love and Fame to nothingness do sink.