“I am distressed, almost discouraged, and fatigued to the point of slightly ill... Never have I been so unlucky with the weather. Never three suitable days in succession, so I have to be always making changes [in his paintings] for everything is growing and turning green. And I have dreamed of painting the Creuse [river in the South of France] just as we saw it... In short, by dint of changes I am following Nature without being able to grasp her, and then there is that river that shrinks, swells again, green one day, then yellow, sometimes almost dry, and which tomorrow will be a torrent, after the terrible rain that is falling at the moment. In fact, I am very worried. Write to me; I have a great need of comfort.”

You Know You're Right.
Song lyrics, Posthumously released (post-1994)

1970s, Some Memories of Drawings (1976)

Source: The Confessions of Aleister Crowley (1929), Ch. 7.
Context: My mother was naturally a rather sensual type of woman and there is not doubt that sexual repression had driven her as nearly as possible to the borders of insanity.
My cousin Agnes had a house in Dorset Square. My mother took me to tea there one afternoon. A copy of Dr. Pascal was in the room. The word "Zola" caught my mother's eye and she made a verbal assault of hysterical fury upon her hostess. Both women shouted and screamed at each other simultaneously, amid floods of tears. Needless to say, my mother had never read a line of Zola — the name was simply a red rag to a cow.
This inconsistency, by the way, seems universal. I have known a printer object to set up "We gave them hell and Tommy", while passing unquestioned all sorts of things to which exception could quite reasonably be taken by narrow-minden imbeciles. The censor habitually passes what I, who am no puritan, consider nauseating filth, while refusing to license Oedipus Rex, which we are compelled to assimilate at school. The country is flooded with the nasty pornography of women writers, while there is an outcry against epoch-making masterpieces of philosophy like Jurgen. The salacious musical comedy goes its libidinous way rejoicing, while Ibsen and Bernard Shaw are on the black list. The fact is, of course, that the puritan has been turned by sexual repression into a sexual pervert and degenerate, so that he is insane on the subject.

Quote from Boudin's Journal, March 1854; as cited in Eugène Boudin, G. Jean-Aubrey & Robert Schmit, Greenwich, New York graphic society, 1968, p. 24
1850s - 1870s

Interview with Anna Tilroe, 1987; as cited on collected quotes on the website of Gerhard Richter: on 'Abstract paintings' https://www.gerhard-richter.com/en/quotes/subjects-2/abstract-paintings-7
1980's

quote of 1948
1942 - 1948
Source: Movements in art since 1945, Edward Lucie-Smith, Thames and Hudson 1975, p 32

translation from original Dutch, Fons Heijnsbroek, 2018
(version in original Dutch / origineel citaat van Anton Mauve, uit zijn brief:) Wat mijn werk betreft zit ik aan enige kleine schilderijtjes, een is mij besteld en die andere moet ik avonturen. Ik voel hoe langer hoe langs hoe meer dat ik zooveel studie te kort kom, als ik geld had schilderde ik in het eerste jaar geen schilderij en studeer ik [schetsen], maar enfin je moet eens door een zure appel heenbijten, het zal mij moeite genoeg kosten om te kunnen leven.
Quote of Mauve, in a letter to Willem Maris, from Oosterbeek, 1864; as cited in Anton Mauve 1838 - 1888, exhibition catalog of Teylers Museum, Haarlem / Laren, Singer, ed. De Bodt en Plomp, 2009, p. 133
1860's

In a letter to Ernest Hoschedé, May 15, 1879 (W, letter, 158); as cited in: Mary M. Gedo (2013) Psychoanalytic Perspectives on Art. p. 123
1870 - 1890

Quote in a conversation with Vollard, along the river near Aix, 1896; as quoted in Cezanne, by Ambroise Vollard, Dover publications Inc. New York, 1984, p. 74
Quotes of Paul Cezanne, 1880s - 1890s