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Marriage is a great institution, but I'm not ready for an institution.

I'm No Angel (motion picture) (1933). Nigel Rees, in his Quote ... Unquote Newsletter, has found this joke appearing earlier in the cartoon "Pop" in 1921: "woman: 'You say what you like, Pop! Marriage is a jolly good institution!' POP: 'Yes! But who wants to live in an institution?"
Marriage is a great institution, but I'm not ready for an institution.