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We do on stage the things that are supposed to happen off. Which is a kind of integrity, if you look on every exit being an entrance somewhere else.
— Tom Stoppard • Rosencrantz & Guildenstern Are Dead

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
This speaker says the players show on stage what theatre normally keeps offstage. He calls that a kind of integrity, though only under one playful condition. It works if every exit is seen as an entrance somewhere else.
Context reviewed