“Let the picture imitate nothing; let it nakedly present its raison d'être. We should indeed be ungrateful were we to deplore the absence of all those things flowers, or landscape, or faces whose mere reflection it might have been. Nevertheless, let us admit that the reminiscence of natural forms cannot be absolutely banished; not yet, at all events. An art cannot be raised to the level of a pure effusion at the first step.”

Source: Mystery and Manners: Occasional Prose

1963, Address at the Free University of Berlin

Representation of the Intellectual http://www.bbc.co.uk/programmes/p00gmx4c (1994)

reprinted in 'Zero', ed. Otto Piene and Heinz Mack, Cambridge, Mass; MIT Press 1973, p. 120
Quotes, 1960's, untitled statements in 'Zero 3', (1961)

From Building Blocks for Better Living, pages 65

Qu’est-ce que la tolérance? c’est l’apanage de l’humanité. Nous sommes tous pétris de faiblesses et d’erreurs; pardonnons-nous réciproquement nos sottises, c’est la première loi de la nature.
"Tolerance" (1764)
Citas, Dictionnaire philosophique (1764)

2011, Tucson Memorial Address (January 2011)

Act IV, scene v
The Way of the World (1700)

Speech in reply to Senator Stephen Douglas in the Lincoln-Douglas debates http://www.bartleby.com/251/1003.html of the 1858 campaign for the U.S. Senate, at Chicago, Illinois (10 July 1858)
1850s, Lincoln–Douglas debates (1858)
Context: My friend has said to me that I am a poor hand to quote Scripture. I will try it again, however. It is said in one of the admonitions of our Lord, "As your Father in Heaven is perfect, be ye also perfect." The Saviour, I suppose, did not expect that any human creature could be perfect as the Father in Heaven; but He said, "As your Father in Heaven is perfect, be ye also perfect." He set that up as a standard; and he who did most toward reaching that standard, attained the highest degree of moral perfection. So I say in relation to the principle that all men are created equal, let it be as nearly reached as we can. If we cannot give freedom to every creature, let us do nothing that will impose slavery upon any other creature. Let us then turn this Government back into the channel in which the framers of the Constitution originally placed it. Let us stand firmly by each other. If we do not do so we are turning in the contrary direction, that our friend Judge Douglas proposes — not intentionally — as working in the traces tend to make this one universal slave nation. He is one that runs in that direction, and as such I resist him. My friends, I have detained you about as long as I desired to do, and I have only to say, let us discard all this quibbling about this man and the other man; this race and that race and the other race being inferior, and therefore they must be placed in an inferior position; discarding our standard that we have left us. Let us discard all these things, and unite as one people throughout this land, until we shall once more stand up declaring that all men are created equal. My friends, I could not, without launching off upon some new topic, which would detain you too long, continue to-night. I thank you for this most extensive audience that you have furnished me to-night. I leave you, hoping that the lamp of liberty will burn in your bosoms until there shall no longer be a doubt that all men are created free and equal.