'The reduction of a head in movement to a bare line seemed to me defensible' - Marcel Duchamp
'Imagine arabesques or various types of linear involutions unwinding themselves not on a flat surface but in space, with all that which the deep and indeterminate limits of th sky can offer the spirit; imagine the play of their lines projecting upon and combining with the most diverse elements imaginable, including that of the human face...' - Olidon Redon
'A work of art goes through many phases of development, but in each phase it is always a work of art. (Therein lies the importance of sketches.) A work of art is finished, from the point of view of the artist, when feeling and perception have resulted in a spiritual synthesis. - Hans Hofmann