Laughter is the mind's intonation. There are ways of laughing which have the sound of counterfeit coins.
Source: In The New Webster's Dictionary of Quotations and Famous Phrases, by Donald Bolander, 1987.
-- Edmond de Goncourt, (May 26 1822-1896), French diarist; He collaborated on social histories and novels with his brother Jules, e.g., Madame Bervaisais, 1869.