" An abstruse subject, I should conceive,’ said Mr. Pickwick. ‘Very, Sir,’ responded Pott, looking intensely sage. ‘He CRAMMED for it, to use a technical but expressive term; he read up for the subject, at my desire, in the “Encyclopaedia Britannica.” ’ ‘Indeed!’ said Mr. Pickwick; ‘I was not aware that that valuable work contained any information respecting Chinese metaphysics.’ ‘He read, Sir,’ rejoined Pott, laying his hand on Mr. Pickwick’s knee, and looking round with a smile of intellectual superiority —‘he read for metaphysics under the letter M, and for China under the letter C, and combined his information, Sir! "

― Charles Dickens , The Pickwick Papers