
Quote in his letter from Drenthe, The Netherlands, Oct. 1883, 'Van Gogh's Letters', http://webexhibits.org/vangogh/letter/13/336.htm
1880s, 1883
spoken to Claude Monet about Pierre-Auguste Renoir (1874), as quoted by John Rewald, The History of Impressionism, Vol.1 (1961).
1850 - 1875
Quote in his letter from Drenthe, The Netherlands, Oct. 1883, 'Van Gogh's Letters', http://webexhibits.org/vangogh/letter/13/336.htm
1880s, 1883
“Do not doubt him who tells you he is afraid, but be afraid of him who tells you he has no doubts.”
Original German text: "Zweifle nicht an dem der dir sagt er hat Angst, aber hab Angst vor dem der dir sagt, er kennt keinen Zweifel."
from "100 Gedichte ohne Vaterland", pub. 1978.
As quoted in "Considerations By the Way" in Conduct of Life by Ralph Waldo Emerson
Variant translation: Believe me, a thousand friends suffice thee not; In a single enemy thou hast more than enough
“Friends should always tell you the truth. But please don’t.”
http://www.vanityfair.com/hollywood/2013/01/louis-ck-proust-questionnaire