"It also opens beer bottles. And it has a laser. A very small, mostly decorative laser."
"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
"Ant farm? Ant farms are for children and failed astrophysicists who can’t grasp macroscopic biology. No, Leonard, I have ascended. This is a tardigrade sanctuary ."
Sheldon has discovered that a specific strain of tardigrades, when exposed to a precise frequency of electromagnetic radiation, can enter a state of "suspended animation so profound, it reverses cellular entropy." He believes he has found the key to low-cost human cryogenics. "It also opens beer bottles
Sheldon approaches Penny for a "human trial." Penny, now working as a pharmaceutical rep, mistakenly thinks Sheldon is asking about a new allergy medication.
(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.’" Think of the legacy
(Panic rising) "You wouldn’t."