Art is not nature because art is a human-made creation, involving conscious intention and creativity, whereas nature exists independently without being created or designed by humans. Art is artificial, made by humans to express ideas, emotions, or aesthetics, while nature simply happens through natural processes without an intent or purpose to be art. Nature can inspire art, but it itself is not a work consciously crafted. Additionally, art is relative and cultural, not universal like nature, and involves human experience and awareness which nature lacks. Thus, art and nature differ mainly in origin, intention, and purpose, with art requiring human intervention and nature existing on its own.