
Quote in his letter to brother Theo, from Saint-Rémy-de-Provence, France, May 1889; as quoted in Vincent van Gogh, edited by Alfred H. Barr; Museum of Modern Art, New York, 1935 https://www.moma.org/documents/moma_catalogue_1996_300061887.pdf, (letter 591), p 25
1880s, 1889