
Quotations by 60 Greatest Indians, Dhirubhai Ambani Institute of Information and Communication Technology http://resourcecentre.daiict.ac.in/eresources/iresources/quotations.html,
Herbert Howe, "Mary Pickford's Favorite Stars and Films". Photoplay, January 1924, p. 28-29. (Photoplay Publishing Company). https://archive.org/stream/pho26chic#page/n31/mode/2up
Quotations by 60 Greatest Indians, Dhirubhai Ambani Institute of Information and Communication Technology http://resourcecentre.daiict.ac.in/eresources/iresources/quotations.html,
http://www.chinadaily.com.cn/showbiz/2007-02/17/content_811558.htm.
Letter to Gertrude Natkin, 2 March 1906 http://digitalcollections.nypl.org/items/53b4cf90-7739-0132-f12c-58d385a7b928
Quote in a letter (27 November, 1858) to Degas' friend and painter Gustave Moreau; as quoted in More unpublished Letters of Degas, Theodore Reff, Art Bulletin LI, No. 3., Sept. 1969, pp. 282-283
1855 - 1875
In a letter to his sister at the end of his life; as quoted in 'The return of the Native' by Joseph Phelan, Artcyclopedia online
1931 - 1943
Interview to "Ukrains'ka Pravda" https://www.pravda.com.ua/news/2009/01/26/3692330/ (26 January 2009)