“We notice the movement of automobiles and other beings in the street, but we do not notice that the turning of the earth. We believe that automobiles go at a great speed on a fixed ground; yet the speed of the earth's rotation at the equator is 40,000 km every 24 hours.
As truly serious art must follow the greater laws, and not only appearance, I try to put all the elements in motion in my mobile sculptures. It is a matter of harmonizing these movements, thus arriving at a new possibility for beauty.”
Quote of Calder (8 March 1932), in text 'That which moves - On mobile sculptures', unpubl. MS https://web.archive.org/web/20110222045901/http://calder.org:80/historicaltexts/text/5.html, 1932, Calder Foundation Archives, New York
1930s - 1950s
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Alexander Calder 41
American artist 1898–1976Related quotes

“It is a matter of harmonizing these movements, thus arriving at a new possibility for beauty.”
1930s, It Shall Move - On Mobile Sculptures (1932)

"Beat The Time"
Shooting Rubberbands at the Stars (1988)

Fourth Mansions, Ch. 1, trans. E. Allison Peers (1961),<!-- Image Books --> p. 77
Interior Castle (1577)
Context: Just as we cannot stop the movement of the heavens, revolving as they do with such speed, so we cannot restrain our thought. And then we send all the faculties of the soul after it, thinking we are lost, and have misused the time that we are spending in the presence of God. Yet the soul may perhaps be wholly united with Him in the Mansions very near His presence, while thought remains in the outskirts of the castle, suffering the assaults of a thousand wild and venomous creatures and from this suffering winning merit. So this must not upset us, and we must not abandon the struggle, as the devil tries to make us do. Most of these trials and times of unrest come from the fact that we do not understand ourselves.

End of Ch. 10<!-- quoted in The Advancement of Science, and Its Burdens (1986) by p. 232 -->; the "Congregation of the Index" (the official inquisition censors) declared<!-- on 15 May 1620 --> that the last sentence of this statement was one of eleven passages which should be removed from the work, in this case because it was perceived as implying that God designed things in accord with the Copernican system, rather than that of Ptolemy.
De revolutionibus orbium coelestium (1543)
Context: The forward and backward arcs appear greater in Jupiter than in Saturn and smaller than in Mars, and on the other hand greater in Venus than in Mercury. This reversal in direction appears more frequently in Saturn than in Jupiter, and also more rarely in Mars and Venus than in Mercury. Moreover, when Saturn, Jupiter, and Mars rise at sunset, they are nearer to the earth than when they set in the evening or appear at a later hour. But Mars in particular, when it shines all night, seems to equal Jupiter in size, being distinguished only by its reddish color. Yet in the other configurations it is found barely among the stars of the second magnitude, being recognized by those who track it with assiduous observations. All these phenomena proceed from the same cause, which is the earth's motion.
Yet none of these phenomena appears in the fixed stars. This proves their immense height, which makes even the sphere of the annual motion, or its reflection, vanish from before our eyes. For, every visible object has some measure of distance beyond which it is no longer seen, as is demonstrated in optics. From Saturn, the highest of the planets, to the sphere of the fixed stars there is an additional gap of the largest size. This is shown by the twinkling lights of the stars. By this token in particular they are distinguished from the planets, for there had to be a very great difference between what moves and what does not move. So vast, without any question, is the divine handiwork of the most excellent Almighty.