When I have fears that I may cease to be <br />Before my pen has glean'd my teeming brain, <br />Before high piled books, in charactry, <br />Hold like rich garners the full-ripen'd grain; <br />When I behold, upon the night's starr'd face, <br />Huge cloudy symbols of a high romance, <br />And think that I may never live to trace <br />Their shadows, with the magic hand of chance; <br />And when I feel, fair creature of an hour, <br />That I shall never look upon thee more, <br />Never have relish in the faery power <br />Of unreflecting love; -- then on the shore <br />Of the wide world I stand alone, and think <br />Till Love and Fame to nothingness do sink.<br /><br />John Keats<br /><br />http://www.poemhunter.com/poem/sonnet-when-i-have-fears-that-i-may-cease-to-be/