After I did the drawings of trees combining them with words, I started doing - I did that for a very short time. Then it kind of - that sort of evolved into just showing the branches of a tree coming down into the trunk and then going into the root system. So I showed both the branches and the roots of a tree, which were about equal. There is as much going on under the ground as is going on above the ground, which you can see.

I always thought there was a - even in the most, quote, "conceptual art," there is always a physical aspect to it. I never knew what the term meant.

Developing your own style became something very interesting, very important to me.

I always had a fairly decent income, coming in just from the art.

But if I did read, say, [Maurice] Merleau-Ponty, for instance, it always seemed to me that the parts that I understood in what he was talking about - and I read him because - well, he wrote a book, well, the Phenomenology of Perception [New York: Humanities Press, 1962]. And it seemed to me that perception had a lot do with how we take in art.

I had always spoken about the space between the art object and the person looking at it as this dynamic space, which I referred to over and over. So the idea of the space between two things was sort of interesting to me.

I think I feel much more at home in studio.