People
Copy from one, it's plagiarism; copy from two, it's research.
— Wilson Mizner

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Wilson Mizner jokes that borrowing from one source is theft while borrowing from several passes as scholarship, skewering how originality gets judged by the number of sources used rather than by honesty, and teasing anyone who dresses up copying as diligent research.
Context reviewed