Malevich, Lissitsky, Kandinsky, Tatlin, Pevsner, Rodchenko... all believed in the social role of art... Their works were like hinged doors, connecting activity with activity. Art with engineering; music with painting; poetry with design; fine art with propaganda; photographs with typography; diagrams with action; the studio with the street.

Compare the cinema with theatre. Both are dramatic arts. Theatre brings actors before a public and every night during the season they re-enact the same drama. Deep in the nature of theatre is a sense of ritual. The cinema, by contrast, transports its audience individually, singly, out of the theatre towards the unknown.

The true content of a photograph is invisible, for it derives from a play, not with form, but with time.

It is comparatively easy to achieve a certain unity in a picture by allowing one colour to dominate, or by muting all the colours. Matisse did neither. He clashed his colours together like cymbals and the effect was like a lullaby.

I wanted to write about looking at the world, so it's more about helping people, or persuading people, to see what is around us; both the marvellous and the terrible.

Men look at women. Women watch themselves being looked at.

Protest and anger practically always derives from hope, and the shouting out against injustice is always in the hope of those injustices being somewhat corrected and a little more justice established.