Cubism is an anatomical chart of a way of seeing external objects. But I want to confuse the meaning of the act of looking. - Jasper Johns

Donald Judd spoke of a 'neutral' surface, but what is meant? Neutrality must involve some relationship (to other ways of painting, thinking?) He would have to include these in his work to establish the neutrality of that surface. He also used 'non' or 'not' – expressive – this is an early problem – a negative solution or – expression of new sense – which can help one into – what one has not known. 'Neutral' expresses an intention.

He Robert Rauschenberg was a kind of enfant terrible at the time [around 1960] and I thought of him as an accomplished professional. He’d already had a number of shows, knew everybody, had been to Black Mountain College in South Carolina, working with all those avant-garde people.. ..Rauschenberg focused very much on working. I was prepared to do that, too. He was also involved with Merce Cunningham dance group and totally unconcerned with his success, in the cliché term. All of the activity had a lively quality, quite separate from any commercial situation.. ..[Rauschenberg moved into a loft in Jaser John's building and they very closely worked together for a couple of years]. You get a lot by doing. It's very important for a young artist to see how things are done. The kind of exchange we had was stronger than talking. If you do something then I do something then you do something, it means more than what you say.

Put a lot of paint & a wooden ball or other object on a board. Push to the other end of the board. Use this in a painting. – ruler on board.