„As the thought comes to me to exorcise and transform this black with a white drawing, it has already become a surface... Now I have lost all fear, and begin to draw on the black surface.“

Robert Motherwell, partly quoting Jean Arp, in Motherwell & black (1981) p. 94 -->
Misattributed

note from his postcard, late May 1943; as quoted in Mondrian, - The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 240
1940's

Vol. I, Ch. 25, Section 2, pg. 687.
(Buch I) (1867)

Unless they're suffocating - then help'em.
Just For Laughs: On The Edge - 2002

Seeing
The Note-Books of Samuel Butler (1912), Part IX - A Painter's Views on Painting

Quote in Macke's letter to philosopher de:Eberhard Grisebach, March 1913; as quoted by de:Wolf-Dieter Dube, in Expressionism; Praeger Publishers, New York, 1973, p. 145

Quelle: 1930s, On my Painting (1938), pp. 13-14

This was the method followed by Euclid, who, fortunately for us, never dreamed of a geometry of triangles, as distinguished from a geometry of circles, or a separate application of the arithmetics of addition and subtraction; but made one help out the other as he best could.
The Differential and Integral Calculus (1836)

As quoted in Chanel (1987) by Jean Leymarie
Kontext: Women think of all colors except the absence of color. I have said that black has it all. White too. Their beauty is absolute. It is the perfect harmony.

13 January 1857 (p. 334)
1831 - 1863, Delacroix' 'Journal' (1847 – 1863)

Quelle: House Rules

Quelle: 1905 - 1910, Notes d'un Peintre' (Notes of a Painter) (1908), p. 410

Rev. Martin Luther King, Jr., Seventh Annual Gandhi Memorial Lecture, Howard Univ., Washington, D.C. (6 November 1966), quoted in What do the election results mean for the move toward marriage equality? by Evan Wolfson (3 November 2004) http://www.freedomtomarry.org/document.asp?doc_id=2030
1960s

The Paris Review interview (1982)
Kontext: I’ve always been interested in the Mother Goddess. Not long ago, a young person, whom I don’t know very well, sent a message to a mutual friend that said: “I’m an addict of Mary Poppins, and I want you to ask P. L. Travers if Mary Poppins is not really the Mother Goddess.” So, I sent back a message: “Well, I’ve only recently come to see that. She is either the Mother Goddess or one of her creatures — that is, if we’re going to look for mythological or fairy-tale origins of Mary Poppins.”
I’ve spent years thinking about it because the questions I’ve been asked, very perceptive questions by readers, have led me to examine what I wrote. The book was entirely spontaneous and not invented, not thought out. I never said, “Well, I’ll write a story about Mother Goddess and call it Mary Poppins.” It didn’t happen like that. I cannot summon up inspiration; I myself am summoned.
Once, when I was in the United States, I went to see a psychologist. It was during the war when I was feeling very cut off. I thought, Well, these people in psychology always want to see the kinds of things you’ve done, so I took as many of my books as were then written. I went and met the man, and he gave me another appointment. And at the next appointment the books were handed back to me with the words: “You know, you don’t really need me. All you need to do is read your own books.”
That was so interesting to me. I began to see, thinking about it, that people who write spontaneously as I do, not with invention, never really read their own books to learn from them. And I set myself to reading them. Every now and then I found myself saying, “But this is true. How did she know?” And then I realized that she is me. Now I can say much more about Mary Poppins because what was known to me in my blood and instincts has now come up to the surface in my head.

OK who's going to identify that?
The Guardian, Saturday 26 April 2008

Quelle: Paint it Black

The Philosophy of Space and Time (1928, tr. 1957)

Quelle: 1879-1884, T-Lautrec, by Henri Perruchot, p. 60 - quote in a letter to his friend Etienne Devismes, Summer of 1881
his friend Etienne Devismes had just finished a novel 'Cocotte', and asked Lautrec to illustrate it. Lautrec made twenty-three pen and ink drawings and sent them to Devismes with a letter

"Change the Joke and Slip the Yoke" (1958), in The Collected Essays, ed. John F. Callahan (New York: Modern Library, 1955), p. 104.