Wherever there is a main issue the elimination of other things which are not essential will make for a stronger result. In the earlier static abstrac… - Alexander Calder

My entrance into the field of abstract art came about as the result of a visit to the studio of Piet Mondrian in Paris in 1930. I was particularly impressed by some rectangles of color he had tacked on his wall in a pattern after his nature. I told him I would like to make them [Mondrian's flat painting] oscillate, he objected. I went home and tried to paint abstractly - but in two weeks I was back again among plastic materials.

Question: Is it true that Marcel Duchamp invented the name “mobile” for your work?
Duchamp named the mobiles and Arp the stabiles. Arp said, "What did you call those things you exhibited last year? Stabiles?"

It was more or less directly as a result of my visit to Piet Mondrian’s studio in 1930, and the sight of all his rectangles of color deployed on the wall, that my first work in the abstract was based on the concept of stellar relationships. Since then there have been variations from this theme, but I always seem to come back to it, in some form or other. For though the lightness of a pierced or serrated solid or surface is extremely interesting the still greater lack of weight of deployed nuclei is much more so.