[Macbeth: Methought I heard a voice cry 'Sleep no more!
Macbeth does murder sleep', the innocent sleep,
Sleep that knits up the ravell'd sleeve of care,
The death of each day's life, sore labour's bath,
Balm of hurt minds, great nature's second course,
Chief nourisher in life's feast,-
Lady Macbeth: What do you mean?
Macbeth: Still it cried 'Sleep no more!' to all the house:
'Glamis hath murder'd sleep, and therefore Cawdor
Shall sleep no more; Macbeth shall sleep no more.'
-Macbeth. II. ii. 32-42.]
