My wife and I recently started watching Star Trek: The Original Series episodes via Netflix's Watch Instantly streaming service (they're also available on YouTube Shows). Although it's a fun show, I still prefer The Next Generation and Deep Space Nine series. I did, however, come upon a line that made me laugh out loud:
What makes you think you're a man? You're an overgrown jackrabbit, an elf with a hyperactive thyroid!
Kirk intentionally trying to irritate Spock in This Side of Paradise, Season 1, Episode 24