When I am dead my dearest, 
          Sing no sad songs for me;
     Plant thou no roses at my head,
          Nor shady cypress tree:
     Be the green grass above me
          With showers and dewdrops wet;
     And if thou wilt, remember,
          And if thou wilt, forget.

     I shall not see the shadows,
          I shall not feel the rain;
     I shall not hear the nightengale
          Sing on, as if in pain:
     And dreaming through the twilight
          That doth not rise nor set, 
     Haply* I may remember, 
          And haply may forget.

                                                "Song" (1848)
                                                 Christina Rossetti

haply - perhaps