On The Big Bang Theory season two finale, Sheldon was given the opporunity of a lifetime -- to go on an NSF expedition to the North Pole to try and help prove string theory.

After finally deciding to brave the cold and accept, Sheldon invited Leonard, Raj and Wolowitz to be his team and stay with him for three months on the North Pole.

Find out if they accepted and how Penny took the news of possibly losing her friends for three months in our "The Monopolar Expedition" recap.

Now for some of our favorite The Big Bang Theory quotes from the episode:

Wolowitz: Just imagine ... if he says yes, we'll have an entire summer without Sheldon.
Raj: We could play outside.
Wolowitz: We could sit on the left side of the couch.
Leonard: I could use the bathroom at 8:20!
Raj: Our dreams are very small, aren't they? | permalink

Raj: But if we were part of the team that confirmed string theory, we could drink for free in any bar in any college town with a university that has a strong science program! | permalink

Wolowitx: You think you can put up with Sheldon?
Raj: Well I'm a hindu. My religion teaches that if we suffer in this life, we're rewarded in the next. Three months in the north pole with Sheldon and I'm reborn as a well hung billionaire with wings | permalink

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