We now know enough to know that we will never know everything. This is why we need art: it teaches us how to live with mystery. Only the artist can explore the ineffable without offering us an answer, for sometimes there is no answer. John Keats called this romantic impulse ‘negative capability.’ He said that certain poets, like Shakespeare, had ‘the ability to remain in uncertainties, mysteries, doubts, without any irritable reaching after fact and reason.’ Keats realized that just because something can’t be solved, or reduced into the laws of physics, doesn’t mean it isn’t real. When we venture beyond the edge of our knowledge, all we have is art.
– Jonah Lehrer, Proust Was a Neuroscientist