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• Beware the fury of a patient man.
  -- John Dryden (1631-1700) -- Absalom and Achitophel, Part i, Line 1005...
• Beware the fury of a patient man. Publius Syru
• Beware the wrath of a patient person.
• Beware the man who fears you.
• Beware a man of one book. -- English Proverb
• Beware of a dark-haired man with a loud tie.
• Beware of a tall black man with one blond shoe.
• Beware of a tall blond man with one black shoe.
• Beware of the man who has no enemies. -- Edward Abbey