There is always a subjective aspect in landscape art, something in the picture that tells us as much about who is behind the camera as about what is in front of it.

Part of the reason that these attempts at explanation fail, I think, is that photographers, like all artists, choose their medium because it allows them the most fully truthful expression of their vision... as Robert Frost told a person who asked him what one of his poems meant, 'You want me to say it worse?'

If I like many photographers, and I do, I account for this by noting a quality they share - animation. They may or may not make a living by photography, but they are alive by it.

When photographers get beyond copying the achievements of others, or just repeating their own accidental first successes, they learn that they do not know where in the world they will find pictures. Nobody does. Each photograph that works is a revelation to its supposed creator.

The only things that distinguish the photographer from everybody else are his pictures: they alone are the basis for our special interest in him. If pictures cannot be understood without knowing details of the artist's private life, then that is a reason for faulting them; major art, by definition, can stand independent of its maker.

Why do most great pictures look uncontrived? Why do photographers bother with the deception, especially since it so often requires the hardest work of all? The answer is, I think, that the deception is necessary if the goal of art is to be reached: only pictures that look as if they had been easily made can convincingly suggest that beauty is commonplace.