Man has three kinds of voice, the speaking or articulate voice, the singing or melodious voice, and the pathetic or expressive voice, which serves as the language of the passions, and gives life to song and speech.
 Jean-Jacques Rousseau, Emile, or On Education (1762). copy citation

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Author Jean-Jacques Rousseau
Source Emile, or On Education
Topic speech passion
Date 1762
Language English
Reference
Note Translated by Barbara Foxley
Weblink http://www.gutenberg.org/cache/epub/5427/pg5427-images.html

Context

“we have no such organ answering to sight, and we do not repeat colours as we repeat sounds. This supplies an additional means of cultivating the ear by practising the active and passive organs one with the other. Man has three kinds of voice, the speaking or articulate voice, the singing or melodious voice, and the pathetic or expressive voice, which serves as the language of the passions, and gives life to song and speech. The child has these three voices, just as the man has them, but he does not know how to use them in combination. Like us, he laughs, cries, laments, shrieks, and groans, but he does not know how to combine these inflexions with speech or song.” source