What I like best is the acoustic ceiling in Caracas, in the auditorium of the university [Central University of Venezuela]. It's made from great pane… - Alexander Calder

Question, Léger once called you a realist. How do you feel about this?
Yes, I think I am a realist. Because I make what I see. It's only the problem of seeing it. If you can imagine a thing, conjure it up in space - then you can make it, and tout de suite you're a realist. The universe is real but you can't see it. You have to imagine it. Once you imagine it, you can be realistic about reproducing it.

I say nuclei, for to me whatever sphere, or other form, I use in these constructions does not necessarily mean a body of that size, shape or color, but may mean a more minute system of bodies, an atmospheric condition, or even a void. I.E. the idea that one can compose any things of which he can conceive.

Therefore, why not plastic forms in motion? Not a simple translatory or rotary motion but several motions of different types, speeds and amplitudes composing to make a resultant whole. Just as one can compose colors, or forms, so one can compose motions.