Hegel, letter of 13 October 1806 to F. I. Niethammer, no. 74 (p. 119) in Briefe von und an Hegel ed. Hoffmeister, vol. 1 (1970).
See also H. Schnädelbach in Wolfgang Welsch, Klaus Vieweg (eds.), Das Interesse des Denkens: Hegel aus heutiger Sicht,
Wilhelm Fink Verlag (2003), p. 223,
T. Pinkard, Hegel: A Biography, (2000), p. 228.
doi.org
dx.doi.org
Simonton, Dean K. (1980). ”Thematic fame, melodic originality, and musical zeitgeist: A biographical and transhistorical content analysis.” (på engelska). Journal of Personality and Social Psychology 38 (6): sid. 972–983. doi:10.1037/0022-3514.38.6.972. ISSN0022-3514.
Form, Sven (2018-01-30). ”Reaching Wuthering Heights with Brave New Words: The Influence of Originality of Words on the Success of Outstanding Best-Sellers” (på engelska). The Journal of Creative Behavior 53 (4): sid. 508–518. doi:10.1002/jocb.230. ISSN0022-0175.
Zeitgeist "spirit of the epoch" and Nationalgeist "spirit of a nation" in L. Meister, Eine kurze Geschichte der Menschenrechte (1789).
der frivole Welt- und Zeitgeist ("the frivolous spirit of the world and the time") in Lavater, Handbibliothek für Freunde 5 (1791), p. 57.
Zeitgeist is popularized by Herder and Goethe.
Zeitgeist in Grimm, Deutsches Wörterbuch.
worldcat.org
Simonton, Dean K. (1980). ”Thematic fame, melodic originality, and musical zeitgeist: A biographical and transhistorical content analysis.” (på engelska). Journal of Personality and Social Psychology 38 (6): sid. 972–983. doi:10.1037/0022-3514.38.6.972. ISSN0022-3514.
Form, Sven (2018-01-30). ”Reaching Wuthering Heights with Brave New Words: The Influence of Originality of Words on the Success of Outstanding Best-Sellers” (på engelska). The Journal of Creative Behavior 53 (4): sid. 508–518. doi:10.1002/jocb.230. ISSN0022-0175.