It will interest artists because, in it, I have made a special study of the way of walking of this girl, and, in fact, I have succeeded in giving the illusion that she is in the process of moving forward.
Balla's quote refers to a photo of a moving girl he saw, made before 1900 by photographer Jules-Etienne Marey; the photo was exposed at the Exposition Universelle (1900), visited by Balla, then.