The sea dancing, it's zig-zag movements and contrasting silver and emerald, evokes within my plastic sensibility the distant vision of a dancer covered in a sparkling sequins in her world of light, noise and sound. Therefore sea = dancer.

'Sea = Dancer' is the title of a painting he made in 1914. In his manifesto 'The Plastic Analogies of Dynamism', c. 1914; as quoted in Inventing Futurism: The Art and Politics of Artificial Optimism, by Christine Poggi, Princeton University Press, 2009, p. 217