He that lives in sin and looks for happiness hereafter is likehimthat soweth cockleand thinkstofill hisbarnwith wheat or barley.

-Bunyan,John
  The Pilgrim's Progress, pt.2.

Corn rigs, an' barley rigs, An'corn rigs are bonie: I'll ne'er forget that happy night, Amang the rigs wi'Annie.

-Burns, Robert
  'Song, The Rigs o' Barley', or 'Corn Rigs  Are Bonie', chorus.

   We are na fou, we're nae that fou, But just a drappie in our e'e; The cock may craw, the day may daw, And ay we'll taste the barley bree.

-Burns, Robert
  'Willie brew'd a peck o' maut', chorus.

On either side the river lie Long fields of barley and of rye, That clothe the wold and meet the sky; And through the field the road runs by To many-towered Camelot.

-Tennyson
  Poems,'The Lady of Shalott' (revised1842), pt.1, l.1^5.

Only reapers, reaping early In among the bearded barley, Hear a song that echoes cheerly From the river winding clearly, Down to towered Camelot.

-Tennyson
  Poems,'The Lady of Shalott' (revised1842), pt.1, l.28^32.