When you’re a carpenter making
a beautiful chest of drawers,
you’re not going to use a piece of
plywood on the back, even though
it faces the wall and nobody will
ever see it. You’ll know it’s there,
so you’re going to use a beautiful
piece of wood on the back. For
you to sleep well at night, the
aesthetic, the quality, has to be
carried all the way through.

Steve Jobs