"Do you know what we call opinion in the absence of evidence? We call it prejudice."

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Albert grunted. "Do you know what happens to lads who ask too many questions?" Mort thought for a moment. "No," he said eventually, "what?" There was silence. Then Albert straightened up and said, "Damned if I know. Probably they get answers, and serve 'em right.

— Terry Pratchett