We Prefer To Believe That The Absence Of Inverted Commas Guarantees The
Originality Of A Thought, Whereas It May Be Merely That The Utterer Has
Forgotten Its Source.
We prefer to believe that the absence of inverted commas guarantees the
originality of a thought, whereas it may be merely that the utterer has
forgotten its source.
-- Clifton Fadiman, "Any Number Can Play"