"I’m going to tell your mother you tried to turn me into a human fruit snack."
(To Leonard) "You know, for a genius, he’s an idiot."
(Panic rising) "You wouldn’t."
"You’ll look like a very preserved raisin. Think of the legacy. ‘Leonard Hofstadter: The First Immortal Experimental Physicist.’ It’s better than your current legacy, which is ‘the guy who left his dirty mug in the sink for three weeks.’"
The climactic sequence. Sheldon has modified a medical-grade centrifuge (acquired through questionable means from the university surplus) and has convinced Leonard to participate by threatening to move back in with his mother for six months unless Leonard "proves his friendship through science." La Teoria del Big Bang 9x7
(Puts down the journal) "You built a five-hundred-dollar climate-controlled terrarium for water bears?"
Sheldon looks up, almost touched, then ruins it by saying: "I’m not an idiot. I’m an unappreciated visionary . There’s a difference. It’s in the dictionary. Look it up." "I’m going to tell your mother you tried
"So you want a sample of the new antihistamine? It’s non-drowsy."
(To Howard and Raj at the university cafeteria) "Imagine: no more dying. No more funerals. Just a polite, pre-scheduled ‘I’ll be back in 500 years, please don’t touch my comic books.’" It’s in the dictionary
"It also opens beer bottles. And it has a laser. A very small, mostly decorative laser."
Just as panic sets in, Raj—who had been secretly recording the experiment for his documentary on "Neurotic American Scientists"—accidentally bumps the frequency dial. Leonard gasps back to life, screaming, "I COULD HEAR EVERYTHING! YOU SAID MY LEGACY WAS A DIRTY MUG!"