Space and time are the only forms on which life is built and hence art must be constructed... The realisation of our perceptions of the world in the forms of space and time is the only aim of our pictorial and plastic art... We renounce the thousand-year-old delusion in art that held the static rhythms as the only elements of the plastic and pictorial arts. We affirm in these arts a new element, the kinetic rhythms as the basic forms of our perception of real time.

As cited in: Fred Kleiner (2008) Intl Stdt Edition-Gardner's Art Thru/Ages: Globl Hist. Vol.2, p. 949 - Realistic Manifesto. 1920