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

- Alexander Calder

A mobile is an abstract sculpture made chiefly out of sheet metal, steel rods, wire and wood. Some or all of these elements move, propelled by electr…

- Alexander Calder

The simplest forms in the universe are the sphere and the circle. I represent them by disks and then I vary them... spheres of different sizes, densi…

- Alexander Calder

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.

- Alexander Calder

Why must art be static? You look at an abstraction, sculptured or painted, an entirely exciting arrangement of planes, spheres, nuclei, entirely with…

- Alexander Calder

Above all, art should be fun.

- Alexander Calder

Just as one can compose colors, or forms, so one can compose motions.

- Alexander Calder

The universe is real, but you can't see it. You have to imagine it.

- Alexander Calder

About my method of work: first it’s the state of mind—Elation (joy).

- Alexander Calder