“No art is superior to another one, but every art looks for expertise and perfection. This is life, which continues; this is why there is no death. There is continuation. There is no silence. There is a continuation of thought.”

Source: Leviathan

Source: Computer Programming as an Art (1974), p. 669 [italics in source]

Introduction
The Wedge (1944)
Context: There is no poetry of distinction without formal invention, for it is in the intimate form that works of art achieve their exact meaning, in which they most resemble the machine, to give language its highest dignity, its illumination in the environment to which it is native. Such war, as the arts live and breathe by, is continuous.
It may be that my interests as expressed here are pre-art. If so I look for a development along these lines and will be satisfied with nothing else.

IX, 19
Meditations (c. 121–180 AD), Book IX

Quote, 24 March 1895, from Denis' Journal; as cited on Wikipedia: Maurice Denis https://en.wikipedia.org/wiki/Maurice_Denis - reference [16]
1890 - 1920

Vague Thoughts On Art (1911)
Context: Art is the one form of human energy in the whole world, which really works for union, and destroys the barriers between man and man. It is the continual, unconscious replacement, however fleeting, of oneself by another; the real cement of human life; the everlasting refreshment and renewal. For, what is grievous, dompting, grim, about our lives is that we are shut up within ourselves, with an itch to get outside ourselves. And to be stolen away from ourselves by Art is a momentary relaxation from that itching, a minute's profound, and as it were secret, enfranchisement. The active amusements and relaxations of life can only rest certain of our faculties, by indulging others; the whole self is never rested save through that unconsciousness of self, which comes through rapt contemplation of Nature or of Art.

N 45, as quoted in Edvard Much – behind the scream, Sue Prideaux; Yale University Press, New Haven and London, 2007, p. 35
after 1930

Closing remarks in court https://www.youtube.com/watch?v=GGIbb8rY7hQ&feature=youtu.be (1 June 2011)
2010s

Source: The Life of Poetry (1949), p. 150
Context: The continuity of film, in which the writer deals with a track of images moving at a given rate of speed, and a separate sound-track which is joined arbitrarily to the image-track, is closer to the continuity of poetry than anything else in art. But the heaviness of the collective work on a commercial film, the repressive codes and sanctions, unspoken and spoken, the company-town feeling raised to its highest, richest, most obsessive-compulsive level in Hollywood, puts the process at the end of any creative spectrum farthest from the making of a poem.
At the same time, almost anything that can be said to make the difficulties of poetry dissolve for the reader, or even to make the reader want to deal with those "difficulties," can be said in terms of film. These images are like the action sequences of a well-made movie — a good thriller will use the excitement of timing, of action let in from several approaches, of crisis prepared for emotionally and intellectually, so that you can look back and recognize the way of its arrival; or, better, feel it coming until the moment of proof arrives, meeting your memory and your recognition.
The cutting of films is a parable in the motion of any art that lives in time, as well as a parable in the ethics of communication.