Related:

• I 'll make assurance double sure, And take a bond of fate.
  -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1...
• The weird sisters. -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1
• Winding up days with toil and nights with sleep. -- William Shakespeare (1564-1616), King Henry V -- Act iv, Sc.
  1...
• Eye of newt and toe of frog, Wool of bat and tongue of dog.
  -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1...
• How now, you secret, black, and midnight hags! -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc.
  1...
• The flighty purpose never is o'ertook, Unless the deed go with it.
  -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1...
• A deed without a name. -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1
• What, will the line stretch out to the crack of doom?
  -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1...
• And be these juggling fiends no more believ'd, That palter with us in a double sense
  That keep the word of promise to our ear And break it to our hope....