
Letter to H. E. Kramer, 25-10-1926, as quoted in: Bram van Velde, A Tribute, Municipal Museum De Lakenhal Leiden, Municipal Museum Schiedam, Museum de Wieger, Deurne 1994, p. 44 (English translation: Charlotte Burgmans)
1920's
Source: 1956 - 1967, Art-as-Art Dogma' part II, (1964), p. 155
Letter to H. E. Kramer, 25-10-1926, as quoted in: Bram van Velde, A Tribute, Municipal Museum De Lakenhal Leiden, Municipal Museum Schiedam, Museum de Wieger, Deurne 1994, p. 44 (English translation: Charlotte Burgmans)
1920's
Wolf Vostell (1961), cited in: Cultures, Vol. 5. (1978), p. 142
Original: Kunst ist Leben, Leben ist Kunst.
Vol. 1: 'My beautiful One, My Unique!', pp. 130-140
1895 - 1905, Lettres à un Inconnu, 1901 – 1905; Museo Communale, Ascona
1941 - 1967
Source: 'Statements by Four artists', Edward Hopper, in 'Reality' 1., Spring 1953, p. 8
Source: posthumous, Astract Expressionist Painting in America, p. 64, in an unpublished letter of Gorky