The basis of everything I do is the universe.

My fingers always seem busier than my mind.

To most people who look at a mobile, it's no more than a series of flat objects that move. To a few, though, it may be poetry.

My fan mail is enormous. Everyone is under six.

When everything goes right a mobile is a piece of poetry that dances with the joy of life and surprise!

If you can imagine a thing, conjure it up in space then you can make it... The universe is real but you can't see it. You have to imagine it. Then you can be realistic about reproducing it.

Why must art be static? You look at an abstraction, sculptured or painted, an entirely exciting arrangement of planes, spheres, nuclei, entirely without meaning. It would be perfect but it is always still. The next step in sculpture is motion.