Similarly, the artist is also more driven by a love of the beautiful – but at this extreme the concept has become its opposite. One way to put the point is to say that for the scientist, beauty is an emergent property of truth. Another way to put it, is to say that the beauty of a theory, in the scientist’s view, supervenes on its truth. Perhaps more simply, beauty depends on the truth for its existence, and not vice versa. But with the artist this direction of dependence is reversed. If something is true, it is so because it’s beautiful. This is that romantic spirit I keep talking about.