You Earth people glorified organized violence for forty centuries.

Related:

• Where there's no emotion, there's no motive for violence.
  Spock, "Dagger of the Mind", stardate 2715...
• You have here an unusual opportunity to appraise the human mind,
  or to examine, in Earth terms, the roles of good and...
• Spock: "I know of your mind meld with my father, which enabled him to complete his last mission." Picard:
  "It was an honor. He's a great man." Spock: "He was...
• If you need a physician, employ these three: a cheerful mind,
  rest, and a temperate diet...
• Spock: "Captain, I will not be coming with you." Picard:
  "Ambassador--" Spock: "The reason for my coming here...
• It is generally agreed that those people who agree
  with you are ranked in your mind as intelligent...
• If you want to hit,
  use a dagger...
• Spock: "I sense you have a closed mind, Captain. Closed minds have kept these two worlds apart for centuries.
  In the Federation, we have learned from experience...
• Without facts, the decision cannot be made logically.
  You must rely on your human intuition. -- Spock, "Assignment...