To be full of joy when looking at an oeuvre is not a little thing.

We attempted perfection; we wanted an object to be without flaw, so we cut the papers with a razor, pasted them down meticulously, but it buckled and was ruined... that is why we decided to tear prewrinkled paper, so that in the finished work of art imperfection would be an integral part, as if at birth death were built in.

Ever since my childhood, I was haunted by the search for perfection. An imperfectly cut paper literally made me ill. I would guillotine it.

I like nature but not its substitutes... Mondrian opposed art to nature saying that art is artificial and nature is natural. I do not share this opinion... Art's origins are natural.

Tooting, howling, screeching, booming, crashing, whistling, grinding, and trilling bolster his [mankind's] ego. His anxiety subsides. His inhuman void spreads monstrously like a gray vegetation.

We do not wish to imitate nature, we do not wish to reproduce. We want to produce. We want to produce the way a plant produces its fruit, not depict. We want to produce directly, not indirectly. Since there is not a trace of abstraction in this art we call it concrete art.

To be full of joy when looking at an oeuvre is not a little thing.