Géza Révész (1878–1955) Hungarian psychologist and musicologist
Footnote at pp. 126-127; As cited in: Adam Schaff (1962). Introduction to semantics, p. 313-314
The Origins and Prehistory of Language, 1956
Michael Halliday (1977). "Ideas about Language" Reprinted in Volume 3 of MAK Halliday's Collected Works. Edited by J.J. Webster. London: Continuum. p113.
1970s and later
Géza Révész (1878–1955) Hungarian psychologist and musicologist
Footnote at pp. 126-127; As cited in: Adam Schaff (1962). Introduction to semantics, p. 313-314
The Origins and Prehistory of Language, 1956
Adam Schaff (1913–2006) Polish Marxist philosopher and theorist
Source: Introduction to semantics, 1962, p. 316
Thomas Hylland Eriksen (1962) Norwegian social anthropologist and professor
Source: What is Anthropology? (2nd ed., 2017), Ch. 2 : Key Concepts
Adam Schaff (1913–2006) Polish Marxist philosopher and theorist
Source: Introduction to semantics, 1962, p. 4
“Language is a system of conventional signs that can be voluntarily produced at any time.”
Hermann Ebbinghaus (1850–1909) German psychologist
Hermann Ebbinghaus, quoted in: Geza Revesz, The Origins and Prehistory of Language, London 1956. footnote p. 126
Pierre Bourdieu (1930–2002) French sociologist, anthropologist, and philosopher
Source: Equisse d'une Théorie de la Pratique (1977), p. 164; as cited in: Jan E. M. Houben (1996) Ideology and Status of Sanskrit, p. 190