Penny: Now just read your mother's line.
Sheldon: Shelly! Shelly, how many times have I told you not to leave your sciencey stuff out on the porch? Goodness, I'll never understand that boy. But then again, I'm a religious nut, and my mind is closed to so many things.
Penny: Woo-woo-woo-woo-woo-woo. Spock to Enterprise. Transport successful.
Sheldon: Glory be to Heaven, some sort of creature just manifested out of thin air. George, put down that Pepsi can full of bourbon that ain't foolin' no one, and get your shotgun!

Raj: I don't like bugs, okay. They freak me out.
Sheldon: Interesting. You're afraid of insects and women. Ladybugs must render you catatonic.

Sheldon: Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and as it always has, rock crushes scissors.

Sheldon: Why are you crying?
Penny: Because I'm stupid.
Sheldon: That's no reason to cry. One cries because one is sad. For example, I cry because others are stupid, and that makes me sad.

Raj: Dance number aside, I'm so not gay.

Penny: Mrs. Cooper? Hey, it's Penny. I think I broke your son. Hold on. Talk to your mother.
Sheldon: (Crying) Mommy, I love you. Don't let Spock take me to the future!

Raj: I know the feeling. It's like accidentally walking into a gay bar and then having no one hit on you. It happened to a friend of mine.