“Two moral forces shaped how we think and live in this shining twentieth century: the Virgin, and the Dynamo. The Dynamo represents the desire to know; the Virgin represents the freedom not to know.What's the Virgin made of? Things that we think are silly, mostly. The peculiar logic of dreams, or the inexplicable stirring we feel when we look on someone that's beautiful not in a way that we all agree is beautiful, but the unique way in which a single person is. The Virgin is faith and mysticism; miracle and instinct; art and randomness.On the other hand, you have the Dynamo: the unstoppable engine. It finds the logic behind a seeming miracle and explains that miracle away; it finds the order in randomness to which we're blind; it takes the caliper to a young woman's head and quantifies her beauty in terms of pleasing mathematical ratios; it accounts for the secret stirring you felt by discoursing at length on the nervous systems of animals.”