In the 'Nude Descending a Staircase,' I wanted to create a static image of movement: movement is an abstraction, a deduction articulated within the painting, without our knowing if a real person is or isn't descending an equally real staircase.
Chess can be described as the movement of pieces eating one another.
Marcel, no more painting; go get a job.
Can works be made which are not 'of art'?
Dada was an extreme protest against the physical side of painting. It was a metaphysical attitude.
The last hundred years have been retinal; even the cubists were. The surrealists tried to free themselves, and earlier so had the dadaists, but unfortunately, these latter were nihilists and didn't produce enough to prove their point, which, by the way, they didn't have to prove - according to their theory.
Since Courbet, it's been believed that painting is addressed to the retina. That was everyone's error. The retinal shudder! Before, painting had other functions: it could be religious, philosophical, moral... our whole century is completely retinal, except for the Surrealists, who tried to go outside it somewhat.