Robin: You know what it is? We were having sex. Men and women need sex to live together. It... it solves all disputes.
Ted: Oh, like Barney's theory about world peace.
[flashback]
Barney: So I explain to her... I said, "Madeleine, every single international conflict essentially boils down to sexual tension."
Ted: Every international conflict?
Barney: Every single one, dude.
Ted: So the crisis in the Middle East could be solved by...
Barney: Gaza Strippers! Next...
Ted: Apartheid.
Barney: Apart thighs! What else you got?
Ted: Cold War.
Barney: [brief pause] Mrs. Gorbachev, take down those pants!
Ted: Oh, like Barney's theory about world peace.
[flashback]
Barney: So I explain to her... I said, "Madeleine, every single international conflict essentially boils down to sexual tension."
Ted: Every international conflict?
Barney: Every single one, dude.
Ted: So the crisis in the Middle East could be solved by...
Barney: Gaza Strippers! Next...
Ted: Apartheid.
Barney: Apart thighs! What else you got?
Ted: Cold War.
Barney: [brief pause] Mrs. Gorbachev, take down those pants!
Robin : You know what it is? We were having sex. Men and women need sex to live together. It... it solves all disputes.
Ted : Oh, like Barney's theory about world peace.
[flashback]
Barney : So I explain to her... I said, "Madeleine, every single international conflict essentially boils down to sexual tension."
Ted : Every international conflict?
Barney : Every single one, dude.
Ted : So the crisis in the Middle East could be solved by...
Barney : Gaza Strippers! Next...
Ted : Apartheid.
Barney : Apart thighs! What else you got?
Ted : Cold War.
Barney : [brief pause] Mrs. Gorbachev, take down those pants!
http://www.tv-quotes.com/shows/how-i-met-your-mother/quote_5072.html