An artistic image is one that ensures its own development, its historical viability. An image is a grain, a self-evolving retroactive organism. It is… - Andrei Tarkovsky

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An artistic image is one that ensures its own development, its historical viability. An image is a grain, a self-evolving retroactive organism. It is a symbol of actual life, as opposed to life itself. Life contains death. An image of life, by contrast, excludes it, or else sees in it a unique potential for the affirmation of life.
Whatever it expresses — even destruction and ruin — the artistic image is by definition an embodiment of hope, it is inspired by faith.
Artistic creation is by definition a denial of death. Therefore it is
optimistic, even if in an ultimate sense the artist is tragic.
And so there can never be optimistic artists and pessimistic artists. There can only be talent and mediocrity.