“Music is the universal language of mankind.”
Nocted Ambrosianae (1822-5).
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John Wilson 2
Scottish advocate, literary critic and author (1785-1854) 1785–1854Related quotes

"The Neglected Plane of Wisdom" (1966), p. 250
Sun Ra : The Immeasurable Equation (2005)

“The mentality of mankind and the language of mankind created each other.”
Modes of Thought (1938).
1930s
Context: The mentality of mankind and the language of mankind created each other. If we like to assume the rise of language as a given fact, then it is not going too far to say that the souls of men are the gift from language to mankind. The account of the sixth day should be written: He gave them speech, and they became souls.

2012

“Music is a kind of harmonious language.”
Zanolini, Biografia di Gioachino Rossini (1875)

"Darwin’s view of the ‘races’ of men" http://www.patheos.com/blogs/reasonadvocates/2015/01/01/darwins-view-of-the-races-of-men/, Patheos (January 1, 2015)
Patheos

As reported by Elizabeth Brentano (Bettina) in a letter to Goethe, 27 May 1810.
Quoted in Edwin Burgum The new criticism (1930), p. 179

“Good music is very close to primitive language.”
"Correspondence of Ideas with the Motion of Organs"
Elements of Physiology (1875)

2001