Related:

• Spock: "What are you doing on Romulus?" Picard: "That was to have been my question of you, sir.
  -- "Unification II", Stardate Unknow...
• Picard: "I also have the responsibility of being the bearer of unhappy news.
  Spock: "Sarek. Sarek is dead." -- "Unification II", Stardate Unknow...
• Data: "We would use a Romulan signal as a carrier for our own, thus disguising its origin.
  K'Vada: "It will work?" Data: "I believe it would....
• K'Vada: "I cannot reveal classified Klingon entry codes to Starfleet.
  Data: "Your entry codes can be easily reconfigured after we depart....
• Pardek: "So what do you think of your enemy, Captain Picard?
  Picard: "These people are no one's enemy, Senator....
• Data: "I am afraid we cannot allow you to warn your guards." -- "Unification II", Stardate 45245.8
• Spock: "It is possible that I have brought my argument with Sarek to you, Captain.
  If so, I apologize. Picard: "Is it so important that you win one last argument with him?...
• Data: "We are more alike than unlike, my dear Captain.
  I have pores, humans have pores. I have fingerprints, humans have fingerprints....
• Spock: "I was involved with 'cowboy diplomacy', as you described it, long before you were born.
  Picard: "Nevertheless, sir, I am not prepared to leave until your affairs are complete....