Related:

• Is is a good day to die, Duras, and the day is not yet over.
  -- Worf to Duras, "Sins of the Father", stardate 43685.2...
• You claim a birthright you have forsaken? I have not forsaken my heritage.
  I am Klingon. My heart is of this world. My blood is as yours....
• This is not your world, human. You do not command here.
  "I'm not here to command." Then you must be ready to fight....
• Duras: "Kill me and you are a traitor forever!" Worf
  Then that...is how it shall be!" -- "Reunion", Stardate unknow...
• It is good to see you again. You are still too fat, K'mpec.
  -- K'mpec and Kahlest, "Sins of the Father", stardate 43685.2...
• It is too dangerous, you must not go alone. Hey, I'm your cha'DIch.
  -- Worf and Picard, "Sins of the Father", stardate 43685.2...
• One does not patronize a Klingon warrior. -- Riker, "Sins of the Father", stardate 43685.2
• You must not forget what happens here today. You must not let your children forget.
  -- Picard to Kurn, "Sins of the Father", stardate 43685.2...
• K'Ehleyr: "Don't play the wounded Klingon to me, Duras.
  You don't do it very well." -- "Reunion", Stardate unknow...