Worf has a couple of really
good ones.. I know a lot of people prefer the Data quotes, but Worf will always be my favorite..
"Star Trek: Deep Space Nine: Take Me Out to the Holosuite"
[during the baseball game, Odo, as umpire, didn't make a call after a player scored]
Nog: What's wrong?
Chief O'Brien: He didn't touch home, Nog!
Nog: Is that true?
Nog: Wha- what do I do?
Worf: Find him and kill him!!
From the same episode:
Captain Sisko: Alright Niners! Let's hear some chatter! Hey batter!
Kasidy Yates: Hey batter batter batter batter batter!
Leeta: Hey batter batter batter batter batter batter!
Worf: Death to the opposition!
"Star Trek: The Next Generation: Power Play"
Lt. Commander Data: Lieutenant, I must apologize for my inadvertent misconduct toward you.
Lieutenant Worf: No apology necessary.
Lt. Commander Data: Your restraint was most remarkable.
Lieutenant Worf: You have no idea.
"Star Trek: Deep Space Nine: Children of Time"
Gabriel: Are you the son of Mogh?
Worf: Yes, I am.
Gabriel: Is it true you can kill someone, just by looking at them?
Worf: Only when I am angry
"Star Trek: The Next Generation: Peak Performance"
Lieutenant Worf: I have wagered heavily in the ship's pool that you will take him past the sixth plateau.
Commander William T. Riker: And if I don't?
Lieutenant Worf: I will be.. irritated.
"Star Trek: The Next Generation: Qpid"
Lieutenant Worf: Sir, I protest. I am not
a merry man!
My personal and absolute favorite:
"Star Trek: The Next Generation: Déjà Q"
Capt. Picard: Return that moon to its orbit.
Q: I have no powers! Q the ordinary.
Capt. Picard: Q the liar! Q the misanthrope!
Q: Q the miserable, Q the desperate! What must I do to convince you people?
Lieutenant Worf: Die.
..and there are so many more!