Design is the fundamental soul of a man-made creation

In most people’s vocabularies, design means veneer. It’s interior decorating. It’s the fabric of the curtains and the sofa. But to me, nothing could be further from the meaning of design. Design is the fundamental soul of a man-made creation that ends up expressing itself in successive outer layers of the product or service.

— Steve Jobs, January 24, 2000

From the interview Apple's One-Dollar-a-Year Man