The Big Bang Theory Season 2 Episode 22: The Classified Materials Turbulence
First aired on May 4, 2009
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Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on.
Sheldon: You have to check your messages, Leonard! Leaving a message is one-half of a social contract, which is completed by the checking of the message. If that contract breaks down, then all social contracts break down and we descend into anarchy.
Leonard: It must be hell inside your head.
Sheldon: At times.
Showing 2 quotes.
Howard: This is the thing from the pizza box that keeps the lid from touching the cheese.
Raj: Is that what this is for? In India, the lid just touches the cheese. Of course, we also have rampant poverty and periodic outbreaks of cholera, so a little cardboard on our cheese is no biggie.