Instead of opposing comic and tragic characters [as Molière and Shakespeare] and contrary scenic states, I organize the opposition of contrasting values, lines, and curves. I oppose curves to straight lines, flat surfaces to molded forms, pure local colors to nuances of gray. These initial plastic forms are either superimposed on objective elements or not, it makes no difference to me. There is only a question of variety.

Quote from 'Notes on Contemporary Plastic Life', 'Kunstblatt', Berlin 1923; as quoted in The documents of 20th century art – Functions of Painting by Fernand Léger, in Thames and Hudson Ltd, London 1973, p. 25