"Yes it was 1949. How I came to that. That's like how one gets to know a human being. It so happens that I've always had a preference – as everyone has prejudices and preferences – for the square as a shape in preference to the circle as a shape. And I have known for a long time that a circle always fools me by not telling me whether it's standing still or not. And if a circle circulates you don't see it. The outer curve looks the same whether it moves or does not move. So the square is much more honest and tells me that it is sitting on one line of the four, usually a horizontal one, as a basis. And I have also come to the conclusion that the square is a human invention, which makes it sympathetic to me. Because you don't see it in nature. As we do not see squares in nature, I thought that it is man-made. But I have corrected myself. Because squares exist in salt crystals, our daily salt. We know this because we can see it in the microscope. On the other hand, we believe we see circles in nature. But rarely precise ones. Mature, it seems, is not a mathematician. Probably there are no straight lines either. Particularly not since Einstein says in his theory of relativity that there is no straight line, rod knows whether there are or not, I don't. I still like to believe that the square is a human invention. And that tickles me. So when I have a preference for it then I can only say excuse me."

“And I learned very early how to make imitation of wood grain. This is something I have in common with Georges Braque. Braque also learned very early from his father how to imitate marble or wood grain. So I could easily make the appearance of oak or walnut on pine. That is very easy; a very simple technique. And I learned how to imitate marble. I never made such a good joke as Braque did. When he was in the Mediterranean he fooled his friends. He painted a rowboat that had wood on one side and marble on the other side. You see, when he'd row out of the city it looked as if he were in a boat of a different material than when he came back, you see, one side was imitation wood and the other side was imitation marble.”

“Amateurism is an emptiness and I accept it because it has no preconceived ideas or rules to be applied. This is for me a most welcome situation and I like to keep my students amateurs and dilettantes.”

“I helped my father who was a house painter and decorative painter. He made stage sets, he made glass paintings, he made everything. I was in the workshop and watched him. So as a child so-called art was not my view. That was, in my opinion, my father's job. But I liked to watch him; he comes, as my mother also, from a very craftsman's background. My father's parents were carpenters. They were also builders partly. They were painters. And several of them were very, active in the theater and all such nonsense, you know. On my mother's side there was much more heavy craft. They were blacksmiths. They made a specialty horse shoes and nails for them.. .So, as a child, my main fun was to watch others working. I loved to walk to the neighboring carpenter's place and up to the neighboring shoemaker in my home town.”

“I think it's true, as many say, I have dealt for many years with the problems that w:Op art so-called, is dealing with. For many years I have studied the logic and magic of color. And so I know what's involved when it comes to the interaction of colors, more than many who refuse to study it. But I found a way to study it, I think, that's all. And besides I refuse to be the father of a new bandwagon.”

“Josef and Anni Albers Foundation”

“I say all the time, if I sell that to you, you pay me for 3 colors. And I sell you 4, I betray you. Not to cheat you, but to pet you. You see I betray you in a positive way. I make you see more than there is. And that's in all my art that way. Absolutely something else. And that's what my book is about. You never see what you see. I lead you to see something else. And therefore I direct you. That's help.”