The paintings got sculptural because the forms got more complicated. I've learned to weave in and out. - Frank Stella

But we're still left with structural or compositional elements. The problems aren't any different. I still have to compose a picture, and if you make an object [as Donald Judd does] you have to organize the structure. I don't think our work that radical in any sense because you don't find any really new compositional or structural element. I don't know if that exists. It's like the idea of the color you haven't seen before. Does something exist that's as radical as a diagonal that's not a diagonal? Or a straight line or a compositional element that you can't describe?

I got tired of other's people painting and began to make my own paintings. I found, however, that I not only got tired of looking at my own paintings but that I also didn't like painting them at all. The painterly problems of what to put here and there and how to do it to make it go with what was already there, became more and more difficult and the solutions more and more unsatisfactory. Until finally it became obvious that there had to be a better way.

The artist's tool or the traditional artist's brush and maybe even oil paint are all disappearing very quickly. We use mostly commercial paint, and we generally tend toward lager brushes. In a way, Abstract Expressionism started this all. De Kooning used house painter's brushes and house painters' techniques.