Related:

• Peace, above all things, is to be desired, but blood must sometimes be spilled to obtain it on equable and lasting terms.
  -- Andrew Jackso...
• Quote #392 "And what country can preserve its liberties, if its rulers are not warned from time to time that this people preserve the spirit of resistance ?
  Let them take arms ... The tree of liberty must be refreshed from time to time, with the blood of patriots and tyrants....
• Bart: If you don't watch the violence, you'll never get desensitized to it.
  Lisa: [covering her eyes] Please tell me when the scary part's over....
• Anyone who thinks Japan is going to export democracy to China must be smoking pot.
  -- Richard M. Nixo...
• Who bravely dares must sometimes risk a fall. -- Tobias G. Smolle
• Danar. You are cunning, you must have Klingon blood. -- Worf, "The Hunted", stardate 43489.2
• No one need think that the world can be ruled without blood.
  The civil sword shall and must be red and bloody. -- Martin Luthe...
• Young blood must have its course, lad, and every dog its day. -- Charles Kingsley
• The tree of research must from time to time be refreshed with the blood of bean counters.
  -- Alan Kay...