“Mechanical reproduction emancipates the work of art from its parasitical dependence on ritual. To an ever greater degree the work of art reproduced becomes the work of art designed for reproducibility. From a photographic negative, for example, one can make any number of prints; to ask for the “authentic” print makes no sense. But the instant the criterion of authenticity ceases to be applicable to artistic production, the total function of art is reversed. Instead of being based on ritual, it begins to be based on another practice – politics.”
Das Kunstwerk im Zeitalter seiner Reproduzierbarkeit The Work of Art in the Age of Mechanical Reproduction (1935)
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Walter Benjamin 70
German literary critic, philosopher and social critic (1892… 1892–1940Related quotes

Introduction
The Wedge (1944)
Context: When a man makes a poem, makes it, mind you, he takes words as he finds them interrelated about him and composes them — without distortion which would mar their exact significances — into an intense expression of his perceptions and ardors that they may constitute a revelation in the speech that he uses. It isn’t what he says that counts as a work of art, it’s what he makes, with such intensity of perception that it lives with an intrinsic movement of its own to verify its authenticity.

“Works of art make rules but rules do not make works of art.”
As quoted in Companion to Contemporary Musical Thought (1992) by John Paynter, p. 590
Unsourced variant: Works of art make rules; rules do not make works of art.

The Origins of Art (1966)
Other Quotes
Context: What I am searching for... is some formula that would combine individual initiative with universal values, and that combination would give us a truly organic form. Form, which we discover in nature by analysis, is obstinately mathematical in its manifestations—which is to say that creation in art requires thought and deliberation. But this is not to say that form can be reduced to a formula. In every work of art it must be re-created, but that too is true of every work of nature. Art differs from nature not in its organic form, but in its human origins: in the fact that it is not God or a machine that makes a work of art, but an individual with his instincts and intuitions, with his sensibility and his mind, searching relentlessly for the perfection that is neither in mind nor in nature, but in the unknown. I do not mean this in an other-worldly sense, only that the form of the flower is unknown to the seed.

"Six Asides About Culture"
Living in Truth (1986)
Context: There is only one Art, whose sole criterion is the power, the authenticity, the revelatory insight, the courage and suggestiveness with which it seeks its truth. … Thus, from the standpoint of the work and its worth it is irrelevant to which political ideas the artist as a citizen claims allegiance, which ideas he would like to serve with his work or whether he holds any such ideas at all.
Source: Quotes of Sol Lewitt, "Paragraphs on Conceptual Art," 1967, p. 80. Cited in: Diane Waldman. Carl Andre https://archive.org/stream/carlandre00wald#page/7/mode/1up. Published 1970 by Solomon R. Guggenheim Museum in New York. p. 7

Manson, J.B. The Tate Gallery, p. 8, Thomas Nelson and Sons.