.. since our past is the greatest in the world and thus all the more dangerous for our life!... We must smash, demolish and destroy our traditional harmony, which makes us fall into a 'gracefullness' created by timid and sentimental cubs [cubs refers sneering to the Cubists].

as quoted in Futurism, ed. Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008. - Boccioni's 'Sculptural Manifesto', 1912