Related:

• I am a Klingon. If you doubt it, a demonstration can be arranged.
  That is the response of a Klingon. The response I would expect from my older brother....
• On this ship, you are my Commander and I obey. In Council Chamber, you are my cha'DIch.
  You do not insist, you obey. -- Worf to Kurn, "Sins of the Father", stardate 43685.2...
• I know I can count on every Klingon warrior on this crew to serve and die in battle.
  So, I ask, Commander Riker - where are your loyalties....
• Are you adjusting to your new environment Commander?
  I find the constraints a bit difficult to conform to....
• One does not patronize a Klingon warrior. -- Riker, "Sins of the Father", stardate 43685.2
• No offense, sir. None taken. I never killed anyone at the supper table, Mister LaForge.
  -- Geordi and Kurn, "Sins of the Father", stardate 43685.2...
• Picard: "Captain's Log, Stardate 43685.2. As part of an exchange program, we are taking aboard a Klingon occupant to return the recent visit of Commander Riker to the cruiser Pagh.
  -- "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....
• Beverly: "Worf, the big guy who never smiles. The *Klingon*!
  Will Riker, your first officer! He's...he's very good at poker!...