Marcel, no more painting; go get a job.

A painting that doesn't shock isn't worth painting.

Dada was an extreme protest against the physical side of painting. It was a metaphysical attitude.

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.

Living is more a question of what one spends than what one makes.

All painting, beginning with Impressionism, is antiscientific, even Seurat. I was interested in introducing the precise and exact aspect of science, which hadn't often been done, or at least hadn't been talked about very much.