There are two ways in which a science develops; in response to problems which is itself creates, and in response to problems that are forced on it from the outside.
He regarded the world-objects right in front of his face-as if from a great distance. For when he moved on the earth he also moved in other realms. In certain seasons, in certain shades, memories alighted on him like sharp-taloned birds: a head turning in the foliage, lantern light flaring in a room.