Alexander Calder

The next step in sculpture is motion.

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.

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

My whole theory about art is the disparity that exists between form, masses and movement.

To an engineer, good enough means perfect. With an artist, there's no such thing as perfect.