for art is concerned neither with things that are, or come into being, by necessity, nor with things that do so in accordance with nature (since these have their origin in themselves).
Izan ere, artea ez dago, ez beharrez diren edo izatera heltzen diren gauzetan (15), ez beraien naturaren arabera diren edo izatera heltzen diren gauzetan, horiek euren baitan baitute euren prinzipioa.