" When something baffled him he found that if he kept on worrying it, he got no further, and lost his sense of proportion in the process. So when he came to a dead stop he indulged in what he called “shutting his eyes” for a little, and when he “opened” them again he habitually found a new light on things that revealed unexpected angles and made the old problem a totally new proposition. There "

― Josephine Tey , The Man in the Queue (Inspector Alan Grant, #1)