Superficie bianca

'For the artist, the need to find new modes of expression is animated by the need for the absolute. To meet this requirement, the only possible compositional criterion is that through the possession of an elementary entity - a line, an indefinitely repeatable rhythm and a monochrome surface - it is necessary to give the works themselves the concreteness of infinity that may undergo the conjugation of time, the only comprehensible dimension and the yardstick and the justification of our spiritual needs'
(E. Castellani quoted in 'Continuit e nuovo', in Azimuth, no. 2, Milan, 1960).